"outdated version" with Subversion integration

Hi,

after using PyCharm for years, this is my very first issue with the tool... :-)

I keep getting a yellow bar across the editor windows that basically says "Outdated version. Modified by xxx <date/time stamp. If I cklick on "show diff", it tells me that the two version are identical - which is no wonder, since they have the same subversion revision number.

What I tried so far:

- Files -> invalidate caches / restart

- ran a subversion update of the working directory

- ran "update project" in the "Version Control"  / "Incoming" tab

As far as I can see, not all fiels of the project are affected.

I found a few reference in the forum but none of the suggestions worked so far.

PLEASE HELP! :-)

Thomas