Have JCE Pro & have been using it successfully on many installations for a number of years.
I have an issue with one installation:
When clicked, the Link Creation Dialogue pops open but it is totally blank - just a white dialogue, ie no options to create a link.
The site is running Joomla 3.9.20 Stable, the php is 7.4.7 & the JCE Pro version is 2.8.15.
Any ideas how this can be fixed?