Additive Time Signatures not showing in Multi-Measure Rests

I've used additive time signatures in a new piece which I've written in MuseScore 4.0. The time signature works fine in the full score and in parts playing at the time of the Time Sig. change, however in parts that are resting, the addition collapses into one number. Breaking that measure from the multi-measure rests also doesn't seem to be working. Photos attached.