I didn't see any mods.
The screenshot shows the POI is Bobcats Bar (countrytown_business_10).
Didn't we used to see exceptions like this when a SleeperVolume didn't have enough sleepers in it?
2025-07-30T00:32:13 86.910 INF 77.94219 SleeperVolume 175, 41, -470: Spawning 184, 49, -466 (11, -30), group 'scoutHordeStageGS1', class zombieMoe, count 0
IndexOutOfRangeException: Index was outside the bounds of the array.
at EntityAlive.CopyPropertiesFromEntityClass () [0x0056f] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityHuman.CopyPropertiesFromEntityClass () [0x00000] in <6f6375162d3d4589aa2d1548306baa23>:0
at Entity.InitCommon () [0x00029] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityHuman.InitCommon () [0x00000] in <6f6375162d3d4589aa2d1548306baa23>:0
at Entity.Init (System.Int32 _entityClass) [0x00007] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityAlive.Init (System.Int32 _entityClass) [0x00000] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityEnemy.Init (System.Int32 _entityClass) [0x00000] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityFactory.CreateEntity (EntityCreationData _ecd) [0x00474] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityFactory.CreateEntity (System.Int32 _et, System.Int32 _id, ItemValue _itemValue, System.Int32 _count, UnityEngine.Vector3 _transformPos, UnityEngine.Vector3 _transformRot, System.Single _lifetime, System.Int32 _playerId, System.String _skinName, System.Int32 _spawnById, System.String _spawnByName) [0x0001b] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityFactory.CreateEntity (System.Int32 _et, System.Int32 _id, UnityEngine.Vector3 _transformPos, UnityEngine.Vector3 _rotation) [0x0000c] in <6f6375162d3d4589aa2d1548306baa23>:0
at EntityFactory.CreateEntity (System.Int32 _et, UnityEngine.Vector3 _transformPos, UnityEngine.Vector3 _rotation) [0x00000] in <6f6375162d3d4589aa2d1548306baa23>:0
at SleeperVolume.Spawn (World _world, System.Int32 entityClass, System.Int32 spawnIndex, BlockSleeper block) [0x000cb] in <6f6375162d3d4589aa2d1548306baa23>:0
at SleeperVolume.UpdateSpawn (World _world) [0x00442] in <6f6375162d3d4589aa2d1548306baa23>:0
at SleeperVolume.Tick (World _world) [0x000ae] in <6f6375162d3d4589aa2d1548306baa23>:0
at World.TickSleeperVolumes () [0x00031] in <6f6375162d3d4589aa2d1548306baa23>:0
at World.OnUpdateTick (System.Single _partialTicks, System.ArraySegment`1[T] _activeChunks) [0x0024a] in <6f6375162d3d4589aa2d1548306baa23>:0
at GameManager.UpdateTick () [0x00073] in <6f6375162d3d4589aa2d1548306baa23>:0
at GameManager.gmUpdate () [0x004d4] in <6f6375162d3d4589aa2d1548306baa23>:0
at GameManager.Update () [0x00000] in <6f6375162d3d4589aa2d1548306baa23>:0