OS: Windows 11
Game version: 4.0.4 (GOG)
For some reason some NPC that should have a weapon - don't have it.
At first I started to notice that sometimes some bandits in a bandit-pack don't have a weapon and just standing and shouting while I "killing monsters" with a sword and starting to fist-fighting me if I put it away. But it started to be a quest NPC, like Rose var Attre in embassy sparring. and then Lambert in fight with ekimmara. It was kinda funny to see Lambert shaking and screeming while I fight with the beast, but not that much funny. I was afraid I could end up fingting with the weaponless Eridin at the end of the game or something like that.
At first I thought that this bug was a side effect from one of my mods, which I have plenty, but when I turnd off everyone of them, it didn't helped. Then, for test I uninstalled the game and made a fresh install with no mods at all, and loaded my saves but nothing has changed - Rosa and Lambert was weaponless.
Update:
It seems I have found the source of the bug when I was fighting Dandelion, There was not blunt sword in my hands, and Dandelion was also weaponless. In my inventory was no sword as well, though I new I get it from madam. I tryed to get it through the console command, but no sword appeared on id I have found in a fandom-wiki. So I realized the blunt sword was not in the game for some reasone, and that's why Dandelion and Rosa had no weapons. I looked for it in the game files and found in def_items_quest.xml a commented blunt sword tag,with a message that it was moved to def_item_weapons.xml. I looked in that file, however there was no blunt sword there.
I made a 'mod' where I uncommeted blunt sword tag in def_items_quest.xml file, but Dandelion still had no weapon in his hands, so I didn't fixed the bug, I suppose it was moved for a reason but something went wrong. Hope you'll fugure it out.