Installing FNC Cloud pack trial trashes FNC UI Pack install

I attempted to install the FNC Cloud Pack trial 3.5.0.2, and now Delphi won't load the FNC UI Pack. I uninstalled the FNC Cloud Pack which did not help. I then reinstalled the FNC UI Pack, which also did not help. Finally I reinstalled the FNC Core which now seems to be back to normal. This was the error:

Any pointers on how to try the FNC Cloud pack trial without clobbering the FNC UI Pack?

Delphi 12.3
FNC UI Pack 6.7.0.0
FNC Core 4.2.0.4

Hi,

Please note that trial versions of TMS FNC products are unfortunately not compatible with registered TMS FNC products.
If you want to use a trial version of TMS FNC Cloud Pack you'll need to make sure TMS FNC UI Pack and TMS FNC Core are uninstalled first.