Constant crashes - Requested Prefetched Frame frame not in async list!

I'm suffering constant crashes within After Effects, around 20+ a day and I'm desperate to get this sorted as I'm in the middle of a large work project.  Any suggestions would be really helpful.  

Crashes usually occur when RAM Previewing or rendering, sometimes when dragging layers in the compsition window, or dragging layers in the timeline. Frequently I'll get a freeze and either After Effects shuts down without warning, or I will be given the opportunity to save an will get a error message, sometime different but most frequently it's this one:

<1416> <prefetch> <5> RequestedPrefetchFrame frame not in async list!

Occasionly I'll even get a full on BSOD crash, sometimes these are varied but the most frequent of these is:

UNEXPECTED KERNEL MODE TRAP

I've been in touch with the company that built my PC and have run numerous tests, standard things like sfc /scannow, CHKDSK, Windows Memory Diagnostic, and also tests via applications like OCCT to check the motherboard + RAM, 3D engine etc. I've tried running different memory configuartions swapping sticks out etc, switched out my graphics card. I've gone into BIOS and changed to default settings, tried things than have been suggested before in Community Posts like switching off virtualization / Intel Turbo. None of this has made any difference.

I run AfterEffects with Multiframe rendering switched off (trying to render with it on results in an almost immediate crash) and I've turned off Hardware Accelaration of comp panels.

My next course of action as I understand it may be to update the BIOS and hope for the best.  However I'm nervous about this as I've only fairly recently switched away from a Mac environment (where I never saw this level of instability) to a PC and I'm quite the novice when it comes to the inner workings of my machine, and I don't want to risk it dying on me completely.  I also want to be prepared in the event that this also doesn't work to see if anyone can suggest any other course of action.

Specs are:

Intel Core i9-14900K

Windows 11

128GB RAM

NVIDIA  GeForce RTX 4070 Ti Super

Thanks in advance!