Jerry,
Sorry that you are seeing this issue.
Can you please clarify if the license is applied?
If you are working with Eclipse 2020-09 and higher versions, then we have a known compatibility issue where the license dialog is blank.
Please apply the patch as suggested in this FAQ to fix it : https://www.genuitec.com/forums/topic/codemix-and-angular-ide-compatibility-issues-in-eclipse-2020-09/
Also CodeMix does not work with newer versions of Java. Please start Eclipse with Java 11 to work seamlessly with CodeMix.
Note that CodeMix has already reached its end of life and no new releases or fixes will be made. See here for more details : https://www.genuitec.com/products/codemix/end-of-life-notice/
MyEclipse 2021 is the alternative based on Language Server tech : https://www.genuitec.com/myeclipse-2021-5-24/
You can download and evaluate MyEclipse for your development needs. If you find it satisfactory, then we can convert your CodeMix license to MyEclipse license.
If you want to continue with CodeMix and the above suggestions does not work, then please share the .log file located at workspace dir/.metadata/.log (rename the extension to .txt and attach it here) along with Eclipse version details to help us investigate further.
–Swapna
Genuitec Support