Hi.
I just happened to have changed a bunch of color tags last night so I loaded up C1 v9 again to see if they were retained, and they were. I do not use catalogs however, so perhaps it is an issue there. Good luck getting it worked out.
P.S. Uhh . . . Is the new verification "feature" (bug) permanent? This is beyond ridiculous to have to fill out every time.
I repeated the procedure, making sure that the catalog wasn't accidentally locked, and it still doesn't hold the changed color tag. Interesting: It lets me initially change from blank to a color, but not from that color to another one or back to blank.
Also, I now found out that images exported as TIFFs do not show up in the folder they're supposed to be in, neither do the RAW images those TIFFs were created from.
For the time being I tossed out C1-9 and went back to C1-8.