Cannot upload score

Hi, I'm trying to upload a score to, but I keep getting a 401 error saying that I am unauthorized to do so. This is only happening with this one score, as I have tried uploading other scores without problem. I've tried signing in and out of the Musescore application, which did not change anything. I've attached the score below, and my guess is that its size may be the issue with uploading it (it's so large that it takes upwards of 20 minutes for the progress bar to reach 100%). Any help would be appreciated. Thanks.

Attachment Size
Concerto_Grosso_No._1_Bloch.mscz 915.73 KB


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