Problem entering quadruplets in 12:8 time

I'm using MuseScore 2.3.2 in OS: OS X 10.13, Arch.: x86_64, MuseScore version (64-bit): 2.3.2, revision: 4592407

Trying to enter a quadruplet in a measure that has a time signature of 12/8. I end up with an extra ⅛ rest at the end of the measure that shouldn't be there. This occurs in measure 34 of the attached file. The original for reference is also attached to show what it should look like