Multiplayer crashes a lot

Me and my friend both play steam desktop version on pc.
When we play solo we don't crash, but after 15-30 min in a multiplayer game either of us will crash.

Bumping for Vis - Same issue with me and multiple other people in guild

--- IT IS ESPECIALLY BAD IN MAPPING ---

Bump - My buddy consistently is crashing when we party up and then join the same map. We can be in a party with no issue but within 5 minutes of being in the same party and map his game will crash.

Here are his specs:
GPU XFX Speedster Merc 310 RX 7900 XTX
CPU AMD Ryzen 9 7950X3D
PSU Corsair HX1000i Platinum
Storage SK P41 Platinum 2 TB
RAM GSkill Trident Z5 Neo 64 GB 6000 MHZ DDR5
MOBO Asus ROG Strix 650E

We do play though steam.

When play with other buddies I have no issue he is the only one that is having this issue I am aware of.

Bump

Got similar issues. My friend and I can play solo without crashing. We can also play multiplayer without crashing IF we stay close to each other. As soon as we separate to roam the map his game will crash...

I am also getting crashes during multiplayer story only. the solution that works for my play group is to stay within 2 screens of eachother

So I found a fix through reddit and it worked for us. The crash happens when a witch has the support rune "Fiery Death" equipped. If it triggers and the other party member is to far away they will crash.

Hope this helps someone else too.