So if you take some hair (it might also work with clothing but I'm working on hair right now) that is super dense (let's say 100K or more) and poly reduce it and THEN consolidate textures it will crash CC3.4. Always.
To do this you might need some Daz hair to test, because most supplied hair either isn't dense enough or doesn't have multiple textures (I'm consolidating all like textures -- so a texture that uses the exact same maps needs to be consolidated with the built-in tool to do so). Anyone with Transformer and some Daz hair can probably test (most Daz hair needs poly reduction and most has multiple textures that need consolidating).
As a bonus, when you bring back up CC (after the crash) no matter what you did previously it will NOT ask to restore (restore is mostly broken in this version - I've only had it ask to restore once, and even then it couldn't do it and crashed again).
I'll report this but I wanted to be sure it's not just my system.
Alienware Aurora R16, Win 11, i9-149000KF, 3.20GHz CPU, 64GB RAM, RTX 4090 (24GB), Samsung 870 Pro 8TB, Gen3 MVNe M-2 SSD, 4TBx2, 39" Alienware Widescreen Monitor
Mike "ex-genius" Kelley