Method `upload_image` sometimes fails on windows

[waliens]

Failed on the following python string path:

path = "C:/Users/[A-Za-z]/Desktop/tmp/mitos-atypia/A03\\frames\\x10\\A03_00.tiff"

See file in attached .zip.

A03_00.zip

[urubens]

I don't have Windows. Need for volunteer to test if this issue persists 3 years later :)