Which specifc out of mem error?
It’s most likely the LUA error sub-type if it’s inventory related, I got this all the time pre-patch browsing my yuge inventory till I set it to 2gb. Inventory list seems changed now fwiw (?), no issues here but I have it set 2gb.
If it is the lua+inv error, try setting the limit to 2 gb (2048 megs)
See Freezing when games go on too long - #4 by myheartislessthan3
You can also set it to steam launch options if you prefer.
--lua-heap-mb-size 2048