I just dl'ed the game yesterday, and have been poking around at it the last couple of hours. I am playing the 4.91 version ATM.
Two things I couldn't find elsewhere.
1. I have a naval shipyard that won't retool to a new ship class. I have retooled other yards, so I know how to do it, but this one just sits there at 0% for months now. It is supposed to be finished in 41 days but every time I advance the time it stays at 0% and the finish date moves out by the same number of days I advanced.
2. I had a research project disappear it was researched. I designed the project and created it, sending it off to the research department. I know I had someone research it, but it never appeared as an option to add to a ship, and it does not appear in the Completed techs list. Now that I am writing this I remember that the project seemed to finish a few months too early, the scientist that was researching it showed up as unemployed unexpectedly.
Thanks in advance for any help.