V 9.0.1755 (44575e0): Label colors

Since version 9.0.1755 (44575e0) the colors of labels will not be synced correctly with Exchange.
In Outlook and on the Exchange Server all categories are white colored!

If I create a tag in eM Client, then open the Exchange webmail and go to Categories, it is there with the correct colour. This is one I just I created for the test:

Or did I maybe misunderstand the issue?

where can i find this version

This is the Mac version.

You can get it by going using Check for Update from the menu bar.

Maybe it is working with new labels, with existing labels/categories it is not working.
All categories in Exchange (under Extras → Etiketten, on Exchange Server and in Outlook (Win10)) are white (without color).