I was working in Stable R241 and during the work I noticed a notification that R250 is release < I don't know if it has anything to do with my problem but just putting it out there.
Then when I saved the progress next time, C3 crashed. I reloaded and tried to open project folder and it gave the standard error Failed to open project. Check it is a valid Construct 3 folder project.
I even tried to open an earlier saved version (an hour or so older) but same error message.
Now I seem to have lost all progress done so far, which was quite a lot.
Can you help recover?