[Fearless]

Thanks for the responses all

I actually did save under different names but all it did was continue to increase the file size. It got up to 2.8 Gb. Bloomin huge. Now the one thing I did notice, the replay option was greyed out after saving the file a couple of times therefore couldn't save it as a replay file anyway so I'm wondering if that was the problem child because it may have reverted to a replay saved file instead :hmm:

The other thing I did was that once I had upgraded the sub, I saved the "Autosaved arriving at port" (I think) file. Maybe that's a no no to do.

Anyway, I'm back at port and have refitted the sub and have gone out to the new patrol zone but this time saved it after I left the port. The option to save it as a replay was active now so I'll see what happens when I save the situation a second time. I'll keep you all posted.