Score starting with a rest that crashes musescore

Hello,

I imported a midi file, did some corrections and adjustments. After some time, I found out I had this rest at the beginning of my score, I don't know where it came from. But the problem is that I can't even touch it, whenever I click on this pause, musescore crashes.

For now, I'll leave it like this, it just for personal use, so only I will be bothered by this rest. However, if anyone has a solution for this (except redoing the whole process of import and adjusments), I'll gladly accept it.