Also another bug:
On the Economics screen - research tab. Select radio to show completed tech.
The check boxes under the planet list don't always follow the radio button.
System body, Hide CMC, and By function all immediately switch to show available only (but radio is still showing completed)
The Star option however, will continue to show Completed when checked, but when you uncheck it, it reverts to Available tech displayed.
In all cases, the current radio selection doesn't change...