Factorio Forums

I recently had an issue where even after building an Asteroid Collector, and deconstructing it to rebuild it several times, the Space Science research never unlocked even when the prerequisite was met.

Log File
Save file

I tried loading your save with base mods only. Deconstructing a collector and rebuilding it unlocked the science.
Maybe one of your mods is messing something up?

After some testing: Yes, it was a mod. Specifically, Creative Mode's "Instant Blueprint" option. I'll be forwarding this to CM's developer.