Could be proton hates rclone
https://www.reddit.com/r/rclone/s/18Eob5uRnA
rclone blocked by Proton Drive it seems
So i had rclone working with proton drive a month or two ago. Figured I’d try it again.
It failed to connect and said the account was locked out. I went to the designated web page to request unlock and filled out the form.
Support replied as follows:
Hello,
Thank you for your message.
We have noticed that your login attempt to your account was blocked, due to your "Rclone" usage, and we have done this because it disrupts our network; we would advise you to stop using "Rclone" for cloud management, to avoid further interruptions. Kind regards,
Customer Support Proton Mail Abuse Team
NOTE: I submitted this same post to r/ProtonDrive and it's been waiting moderation for 8 hours or so. Not sure why. The Support team replied in about 10 minutes.