@ fitzcarraldo - did you add any mods after having started a different campaign, and not empty the Save folder, by chance? Are you certain you have vickers03's latest 4k skins for the S-18 update? Thanks! I hope to begin testing a similar mod load-out shortly!
btw, you don't need the first 399_OAKsHudGauges if you use the 399c2_NoScrollNavMap - OAKsSameSizedDials mod, which I am sure you're aware of, probably seeing that too late in the process and didn't want to undo most of what you had done... lol