Cool, thanks!

I was using a mod called belt upgrader that is to automatically place blue belts over red. It does seem a bit inconsistent at times as to whether it properly calls for the old belt to be deconstructed, as sometimes even though a bot is hovering over the location with a blue belt held, the red belt ...

I used steam's automatic patcher and loaded up 16.42, attempted to load the save game that I have not had a problem loading. It crashed after clicking the load button, bringing up an unexpected error occurred message.

I downgraded to 16.41 which was working yesterday, and the same thing occurred ...