Thanks for the quick response! :D I have gone back through my save history, and an hour prior to the corrupt save I had saved as a different file (attached). This one loads okay in 0.17.6, so I can continue from there. If it is any help I have attached this save file also. If the corruption reoccurs...

Game was created in 0.17.1. loaded fine up until 0.17.4. Load game crashed outright on 0.17.5. In 0.17.6 a new error has appeared when the load fails. All files attached. Mods in use prior to save were Infinizoom and Nanobots - removing the mods does not prevent the crash.

Same here - new 0.17 game worked fine up to 0.17.4. Tonight it crashes on load. All mods disabled. Starting a new map seems to be fine. Files attached.

(EDIT: Loading a < 0.17.2 save works fine)