[0.4] Act 3 Crashes Make It Unplayable in Co-op

'lo there. I've been playing since early access launched and, while I always had to contend with crashes (or freezes as the GPU spun up a new device/instance) in both solo and co-op play, 0.4 is making Act 3 unplayable in co-op.

Prior to act 3, it was generally smooth sailing on Vulkan crash-wise. In 0.3, Vulkan proved smoother than DX12 and really only gave me the freezes during which the game spins up a new device. Vulkan does, however, suffer from worse performance for me, even with DLSS set to both balanced/quality. I'm talking 40-70 FPS, where on DX 12 I'm hovering closer to 90.

When using Vulkan, the FPS regularly drops to 20 and below during co-op boss fights, but, while far from ideal, it was a trade-off I was willing to put up with (for now). DX12 has noticeably higher FPS across the board but, in the past, was prone to more crashes/freezes.

Fast-forward to act 3 in 0.4 and I'm crashing every 2 minutes. This is a full crash to desktop with no error message, as far as I can tell. Worse yet, I cannot rejoin the instance after I crash.

Applies to both the proper act areas and Vaal temple dungeons. For reference, my co-op partner had a similar issue last league, but we only played together while mapping. He hasn't experienced crashes so far in 0.4.

I beat most of act 3 solo and only encountered two freezes that didn't crash my game. Upon attempting co-op in act 4, I was back at 3 crashes in under 5 minutes, once when entering Shrike Island, the other two while doing a Vaal dungeon. I'm playing a Wyvern/Bear hybrid but, as far as I can tell, the crashes don't seem to be cause by a specific skill. I've been using Herald of Ash before the crashes began and added Barkskin after they started appearing.

My specs: Intel i7 13700K, 32 GB RAM, Nvidia RTX 3080, Win 11(whatever the latest version is). Nvidia drivers updated to 591.44. I've been playing with settings maxed, and DLSS set to either Balanced or Quality since early access launched. Lowering shadows from Ultra to High solved nothing. Have yet to tinker with others.

Any input would be appreciated. I realize this might be vague, but it hopefully helps make things more stable soon-ish. Would very much love to kill stuff as a pair of druids rather than one lonely wyvern (pls fix Nvidia bug, tyvm).

I'm also constantly crashing with no error message and nothing in the Client.txt. For me it's in single player and I think it happens when I attack with the iceclaw - not 100% sure. Sometimes I can play for 1 hour before a crash, next it only takes 10 minutes.


I would assume that whatever is causing it just happens more frequently in co op. I have had 0 crashes in 0.3, but are well into the double digits in 0.4