Can't Export Parts to MP3 in Editor

Whenever I use the "Export parts" function in the editor, a loading bar pops up saying that my file is exporting. After the loading bar finishes, however, there is about a ten-second gap and it starts from the beginning again. This happens twice, and then it tells me my file has been exported successfully. When I press cancel after the bar has loaded for the first time, MuseScore, again, tells me that my file has been exported successfully. When I find the file in my files app, (I am on PC) and double click the file, my computer tells me "The item is missing or we can't get to it." With a possible error code of 0x80070002, although that may just be related to the track I am attempting to play. I have tried opening the MP3 with different apps and came to the conclusion that there is a problem with the file and not the opening process. Has anyone else had this issue? I have a short screen recording with this issue, but I cant upload it here. I can email it to you if you'd like.