Thank you again for all of the information and assistance XenonSurf!
Based on my research and what you describe, the corrupt saves must have something to do with being overwritten and having two vessels within visual range when I saved.
I have been guilty of doing that for quite a while now and it seems the one day I decided to look at OFEV my bad save game etiquette bit me in the stern as well with the corruption. Same day. Never had an issue before then so I assumed they might be related. Lesson learned!
Seems to be rather convenient time anyway as I just noticed I needed to update to TWoS 2.2.13 and a fresh install is recommend when updating anyway.
Thank you so much again, Subsim is an absolutely amazing community and your awesome contributions help to make it so!