Bridge 11.0.2.123 not importing all photos to Dropbox folder

Hi there.

I have been experiencing a weird behaviour when importing CR2 photos through Bridge software. After taking new pictures I extract the card from the camera, put it in a card reader in my pc and start the import process from Bridge. If destination folder is C: everything is fine. But if it's my Dropbox folder instead,not all images are imported, some of there are missing,most of times all of them. If I repeat the process again all images are imported correctly. The first time it doesn't work, but the second it does. Don't know why.

Things I have tested:

-change USB port in my pc for card reader: didn't make any difference.

-connect the camera directly to pc and import from Bridge to Dropbox: it worked seamlessly.

-copy and paste from camera card to Dropbox folder without using Bridge: it worked seamlessly.

Could anybody give me a hand on what's going on?

My camera is a CANON EOS 1200D, my card is a SanDisk Extreme Pro 32GB 95MB/s and I'm using a Windows 10 machine.

Thank you in advance.

Kind Regards.

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