Empty bars. How to fix it?

I use MuseScore 3.6.2 Portable AppImage with Ubuntu Studio 20.04.4 LTS (64 bit Linux).

From time to time, we get some scores with full empty (real empty) bars, which we cannot to remove or to fill with silences. Typically, these files come from old MIDI files made with another music score software (in my specific case, from Cakewalk Home Studio). I don't know why we get these empty bars, which weren't present in the original file.

Is there some "hidden" tools to fix it? ???

The only one way I used is:
1) To add a new instrument.
2) Copy the usable part(s) of the problematic line to that new instrument.
3) Erase the bad line (instrument).

Does somebody know another "automatic" way to fix this? ???

I add a sample score.

Blessings from Chile!!!