I have the same issue with the [D3D error was 80070057] thing. Strangely it only appears once I add JC. All my other mods (RO+RP1+recommended) works perfectly.
I tried updating the GC driver and I increased the pagefile for my system disk but no luck so far.
Still, I luckily found a workaround. If I remove the ModuleManager cache it rebuilds during the subsequent startup of KSP and everything works well including JC. The only thing is that I have to do it everytime so it adds a minute or two to my loading time. I reckon its definitely less annoying than having all these obsolete engines hanging around my parts list !
Maybe someone has a clue about what may be going on ? I have 32Gb of RAM and a GTX 960 with only 4Gb of Video Memory. In my previous RO/RP1 install somewhere in the beginning of 2020 everything worked well including JC...
