@Pak Firstly, thanks for the 2.5x rescale configs! However, I've noticed that the config adjusts part "CA_SRBnose" twice (lines 59 and 74). Looking at the changes, I assume the second one is meant to adjust part "CA_boosterPack".
I had the same issue, along with the save resetting to year 1 day 1. However, after uninstalling the mod and starting the game with a backup of the save, then installing the latest version, all vessels loaded correctly and the time was unchanged.