Sound playing after the deletion of instrument.

Hi, I posted this before but somehow it was deleted i think? Maybe i posted it in the wrong area and if so my bad, but I am having a very big problem, I had deleted an instrument(a Flute) in one of my scores, Long story short whenever i play back, that flute still plays its sound as if it is still there, And there is absolutely no way to bypass it, in fact, even if i mute every instrument and only the trombone plays, the Flute Still Plays in the background, even if i do the same to he Violin, I still hear the flute. As if the Flute Somehow has its audio implanted into the audio of every other instrument at a certain point, because it aint even playing where its supposed to play either after i deleted some measures, It just plays at the time stamp it would play at not the measure, it seems like the Music Is Literally Implanted into the Audio at that exact time no matter what audio it is. It does it for both audio files which are copies of my original because I am trying to export each separately due to how laggy MuseSounds is. Thankyou ahead of time, Hopefully this can be fixed if it is a bug with MuseScore or just somehow undetected corruption in my file. I looked everywhere for a fix, and couldnt find any solution whatsoever unfortunately.