Specific report does not publish to workspace

Hi all,

I have an issue with a particular Power BI file in my workspace. For the past 3 weeks I published this file without any issues (using the same name in the same location on my PC).

Since this morning, it does recognize that I am replacing a Data set but once I press "replace" it keeps on "publishing" forever untill I have to quit it. If I change the exact same report report to a new name, I can publish it immediately. If I use another file and save it as the original name and publish it then, it stops again. Does anyone know what to do? Many people have access to this particular link in my workspace so want to know for sure that this cannot be fixed before I publish a new version / it somewhere else and I have to inform all users.

Thanks in advance!
Frank