I got the a similar problem. I see monsters when I play on dammit servers, and I can summon them in a server which supports it, but I couldnt do it offline on my own comp
I started a prac at Vampire, in example, and I couldn't see nor the cows neither the devilfish. Either by using leagueas mod or not.
I just found the solution
Try these commands:
set engine.gameinfo bNoMonsters False
set engine.gameinfo bHumansOnly False
set botpack.assault bNoMonsters False
set botpack.assault bHumansOnly False
If you wanna use leagueas:
set botpack.leagueassault bNoMonsters False
set botpack.leagueassault bHumansOnly False
Try to summon any monster to check if it works
summon unreali. <MonsterName>
Queen, Warlord, SkaarjWarrior, SkaarjLord, IceSkaarj, Manta, Krall, Mercenary, Cow, Squid, Slith, Fly, Brute, Pupae, Nali, DevilFish...