Super weird. Does it now happen every time (when an log entry would unlock). What does the log book show? Cause by the looks of it the save has somehow gotten messed up...
Should be fixed now! Basically there was a save data mismatch between 1.3.0 and 1.3.1 and it should now succeed at importing the previous save with only minimal loss of data. All the unlocks at least should be there.