I ran into this problem as well today. I took some pictures of flipcharts today in a location that has notoriously bad cell coverage. I was not connected to WiFi at the time and was sending them to my work account OneNote.
Now both uploads are just stuck on transferring and the only option I have is to cancel - which will delete the images. I don't want to do this as it would mean I would lose the images.
Ideally, the app would allow a retry which has already been suggested or the ability to change where I am trying to upload it to.
As the only response from Bob seems to be to try and upload to Onedrive - I have done several different scenarios:
On my home WiFi
- Upload to work OneDrive - works fine
- Upload to personal OneDrive - works fine
- Upload to work OneNote - works fine
- Upload to personal OneNote - works fine
On a good 4G cellular connection:
- Upload to work OneDrive - works fine
- Upload to personal OneDrive - works fine
- Upload to work OneNote - works fine
- Upload to personal OneNote - works fine
None of this fixes the two files stuck in transferring.
Also closing the app completely / restarting my phone makes no difference.
This sounds very much like this issue: https://officelens.uservoice.com/forums/289714-office-lens-users/suggestions/9789222-scans-are-stuck-waiting-to-transfer-even-though
Which was originally reported in 2016 which makes me think it's one of those things that's so far down their priorities list it will never get done.
I really have liked the integration Office Lens had to the different Microsoft apps but it might be time to look at using a different app - quite a few of them have solved this by keeping a local copy of the scan so that it can be sent elsewhere later.