Upload Problem

Hello I have a problem with a meeting that I record this afternoon.
It didn’t upload to Dropbox as it usually happens.The meeting last about one hour and thirty minutes (approximately).
I did two recordings, one last aproximatly 30 sec and the other more than one hour.
The short one did went to Dropbox, but the long one didnt.

Its a really important meeting for me and I would appreciate your help.