fix: Critical bugfixes for VoiceMeister

1. CRITICAL: Permission overwrites now properly merge instead of replace.
   set_permissions with keyword args REPLACES the entire overwrite,
   so Lock→Hide would undo the Lock. Now uses overwrites_for() to
   fetch existing state and modify only the target field.
   Affects: Lock, Unlock, Hide, Unhide, Ghost, Reveal (buttons & commands)

2. CRITICAL: Removed broken async generator in any() for game rename check.
   await in generator expression creates async generator that any() can't
   consume. Game rename loop now always starts and checks config per-guild.

3. Minor: Fixed double-write in _save_temp_channels.
4. Minor: Removed unused imports (datetime, Set).

voicemeister/views.py

@@ -341,8 +341,10 @@ class VoiceMeisterPanel(ui.View):
         cog, member, vc, owner_id = await _require_owner(interaction)
         if cog is None:
             return
+        overwrite = vc.overwrites_for(vc.guild.default_role)
+        overwrite.connect = False
         await vc.set_permissions(
-            vc.guild.default_role, connect=False,
+            vc.guild.default_role, overwrite=overwrite,
             reason=f"VoiceMeister: locked by {member}",
         )
         await interaction.response.send_message(
@@ -356,8 +358,10 @@ class VoiceMeisterPanel(ui.View):
         cog, member, vc, owner_id = await _require_owner(interaction)
         if cog is None:
             return
+        overwrite = vc.overwrites_for(vc.guild.default_role)
+        overwrite.connect = None
         await vc.set_permissions(
-            vc.guild.default_role, connect=None,
+            vc.guild.default_role, overwrite=overwrite,
             reason=f"VoiceMeister: unlocked by {member}",
         )
         await interaction.response.send_message(
@@ -371,8 +375,11 @@ class VoiceMeisterPanel(ui.View):
         cog, member, vc, owner_id = await _require_owner(interaction)
         if cog is None:
             return
+        overwrite = vc.overwrites_for(vc.guild.default_role)
+        overwrite.connect = False
+        overwrite.view_channel = False
         await vc.set_permissions(
-            vc.guild.default_role, connect=False, view_channel=False,
+            vc.guild.default_role, overwrite=overwrite,
             reason=f"VoiceMeister: ghosted by {member}",
         )
         await interaction.response.send_message(
@@ -386,8 +393,11 @@ class VoiceMeisterPanel(ui.View):
         cog, member, vc, owner_id = await _require_owner(interaction)
         if cog is None:
             return
+        overwrite = vc.overwrites_for(vc.guild.default_role)
+        overwrite.connect = None
+        overwrite.view_channel = None
         await vc.set_permissions(
-            vc.guild.default_role, connect=None, view_channel=None,
+            vc.guild.default_role, overwrite=overwrite,
             reason=f"VoiceMeister: revealed by {member}",
         )
         await interaction.response.send_message(
@@ -401,8 +411,10 @@ class VoiceMeisterPanel(ui.View):
         cog, member, vc, owner_id = await _require_owner(interaction)
         if cog is None:
             return
+        overwrite = vc.overwrites_for(vc.guild.default_role)
+        overwrite.view_channel = False
         await vc.set_permissions(
-            vc.guild.default_role, view_channel=False,
+            vc.guild.default_role, overwrite=overwrite,
             reason=f"VoiceMeister: hidden by {member}",
         )
         await interaction.response.send_message(
@@ -462,8 +474,10 @@ class VoiceMeisterPanel(ui.View):
         cog, member, vc, owner_id = await _require_owner(interaction)
         if cog is None:
             return
+        overwrite = vc.overwrites_for(vc.guild.default_role)
+        overwrite.view_channel = None
         await vc.set_permissions(
-            vc.guild.default_role, view_channel=None,
+            vc.guild.default_role, overwrite=overwrite,
             reason=f"VoiceMeister: unhidden by {member}",
         )
         await interaction.response.send_message(

voicemeister/voicemeister.py

@@ -7,9 +7,8 @@ name templates, game detection, logging, blacklist/whitelist, cooldowns.
 from __future__ import annotations
 
 import asyncio
-import datetime
 import time
-from typing import Dict, Optional, Set
+from typing import Dict, Optional
 
 import discord
 from redbot.core import Config, commands, checks
@@ -64,10 +63,7 @@ class VoiceMeister(commands.Cog):
         self.bot.add_view(self._panel_view)
         await self._load_all_guilds()
         self._bg_tasks.append(asyncio.create_task(self._cleanup_loop()))
-        if any(
+        # Always start the game rename loop — it checks per-guild config each cycle
-            (await self.config.guild_from_id(gid).auto_rename_game())
-            for gid in [g.id for g in self.bot.guilds]
-        ):
         self._bg_tasks.append(asyncio.create_task(self._game_rename_loop()))
 
     async def cog_unload(self):
@@ -97,14 +93,13 @@ class VoiceMeister(commands.Cog):
                 gid = channel.guild.id
                 guild_map.setdefault(gid, {})[str(ch_id)] = owner_id
 
-        # Also handle guilds that might have had all channels removed
+        # Clear guilds that no longer have temp channels
         all_guilds = await self.config.all_guilds()
         for gid in all_guilds:
             if gid not in guild_map:
                 await self.config.guild_from_id(gid).temp_channels.set({})
-            else:
-                await self.config.guild_from_id(gid).temp_channels.set(guild_map[gid])
 
+        # Save guilds that have temp channels
         for gid, data in guild_map.items():
             await self.config.guild_from_id(gid).temp_channels.set(data)
 
@@ -965,7 +960,9 @@ class VoiceMeister(commands.Cog):
         vc, _ = await self._get_user_vc(ctx)
         if not vc:
             return
-        await vc.set_permissions(ctx.guild.default_role, connect=False,
+        overwrite = vc.overwrites_for(ctx.guild.default_role)
+        overwrite.connect = False
+        await vc.set_permissions(ctx.guild.default_role, overwrite=overwrite,
                                  reason=f"VoiceMeister: locked by {ctx.author}")
         await ctx.send(embed=ok_embed("Channel **locked** 🔒."))
         await self._log_action(ctx.guild, "🔒 Locked", member=ctx.author, channel=vc)
@@ -976,7 +973,9 @@ class VoiceMeister(commands.Cog):
         vc, _ = await self._get_user_vc(ctx)
         if not vc:
             return
-        await vc.set_permissions(ctx.guild.default_role, connect=None,
+        overwrite = vc.overwrites_for(ctx.guild.default_role)
+        overwrite.connect = None
+        await vc.set_permissions(ctx.guild.default_role, overwrite=overwrite,
                                  reason=f"VoiceMeister: unlocked by {ctx.author}")
         await ctx.send(embed=ok_embed("Channel **unlocked** 🔓."))
         await self._log_action(ctx.guild, "🔓 Unlocked", member=ctx.author, channel=vc)
@@ -987,7 +986,9 @@ class VoiceMeister(commands.Cog):
         vc, _ = await self._get_user_vc(ctx)
         if not vc:
             return
-        await vc.set_permissions(ctx.guild.default_role, view_channel=False,
+        overwrite = vc.overwrites_for(ctx.guild.default_role)
+        overwrite.view_channel = False
+        await vc.set_permissions(ctx.guild.default_role, overwrite=overwrite,
                                  reason=f"VoiceMeister: hidden by {ctx.author}")
         await ctx.send(embed=ok_embed("Channel **hidden** 👤."))
         await self._log_action(ctx.guild, "👤 Hidden", member=ctx.author, channel=vc)
@@ -998,7 +999,9 @@ class VoiceMeister(commands.Cog):
         vc, _ = await self._get_user_vc(ctx)
         if not vc:
             return
-        await vc.set_permissions(ctx.guild.default_role, view_channel=None,
+        overwrite = vc.overwrites_for(ctx.guild.default_role)
+        overwrite.view_channel = None
+        await vc.set_permissions(ctx.guild.default_role, overwrite=overwrite,
                                  reason=f"VoiceMeister: unhidden by {ctx.author}")
         await ctx.send(embed=ok_embed("Channel **visible** 👁️."))
         await self._log_action(ctx.guild, "👁️ Unhidden", member=ctx.author, channel=vc)
@@ -1009,7 +1012,10 @@ class VoiceMeister(commands.Cog):
         vc, _ = await self._get_user_vc(ctx)
         if not vc:
             return
-        await vc.set_permissions(ctx.guild.default_role, connect=False, view_channel=False,
+        overwrite = vc.overwrites_for(ctx.guild.default_role)
+        overwrite.connect = False
+        overwrite.view_channel = False
+        await vc.set_permissions(ctx.guild.default_role, overwrite=overwrite,
                                  reason=f"VoiceMeister: ghosted by {ctx.author}")
         await ctx.send(embed=ok_embed("Channel **ghosted** 👻 — hidden and locked."))
         await self._log_action(ctx.guild, "👻 Ghosted", member=ctx.author, channel=vc)