You may ancounter an issue on the Diplomacy screens where two of them may overlap making the screen a bit unreadable. This is due to the fact that the game UI does not handle well situations where suddenly some game objects are missing.

This is not game-breaking but if you want to fix this, you have to manually change a few lines in ...\Sid Meier's Civilization VI\Base\Assets\UI\DiplomacyActionView.lua - 1891, 1905 and 1918.

The lines look like this:
instance.Description:SetText( Locale.Lookup( item.Description ) );

and you should change them to:
instance.Description:SetText( item.Description and Locale.Lookup( item.Description ) or "*");

This will work only if some other mod will not change the diplo screen. If you wanna use another mod that changes the above file then the same changes should be applied in this mod. However, you need to find the lines manually because the numbering may be different.