Long score, having trouble uploading.

Jan 14, 2019

I'm trying to upload a piece that I've been working on for a few weeks, and it is having trouble uploading. I've tried twice and both times they "processed" for 2-3 hours and then said "page not found." The piece is 419 measures long which makes me think that is a factor, but I'm not sure. Can anyone direct me? 
Link to the score: https://musescore.com/user/4231326/scores/5390291


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