Pcloud and Duplicati is the forum topic linked by the pull request behind this 2.1.0.101 change:
Breaking change from previous canary
The pCloud backend is updated to support subfolders.
Paths with/
will now be treated as a folder structure on pCloud.
Previous version would treatfolder/subfolder
as a single foldername,
this version treats it asfolder
/subfolder
.
and since you found you were not actually on 2.1.0.102, this will impact your native API usage.
I would hope that you know how to move the files around in pCloud to satisfy both these cases.