Frightened Condition and Enemy AI. Enemies with the Frightened condition never attack, but they should be. They should be making attacks with disadvantage or actively seeking out other enemies to attack.
I've submitted a feedback report to Larian about this and they replied back that they know of this but have decided that Frightened works differently in BG3. I'd recommend submitting a report of your own https://larian.com/support/baldur-s-gate-3#modal Hopefully enough feedback will convince them to change it.
Originally Posted by Varujan
- Sleep not lasting the full duration. Sleep is supposed to last a minute but frequently only lasts maybe one or two rounds. Additionally, I don't think the AI ever uses the Help action to wake the sleeper. Additionally, familiars and pets should be able to wake sleeping allies.
I feel like enemies are being granted Saving Throws against sleep each turn which, combined with the HP increase given to Goblins, just makes Sleep so much worse.