Factorio Forums

1. Have a mod that adds a technology
2. Start researching that technology
3. Also add another technology to the queue
4. Save game, remove the mod, and reload
5. Notice that the first technology is gone (ok)

Problem: the second tech is still in the queue, but the GUI says 'Press T to start research' and the labs are idle.

Thanks for the report. There are several cases like this and we mostly ignore them. When you add or remove mods you just have to go around and "poke" stuff like this to start it back up.