Fer,
Sorry that you are seeing this issue.
I strongly recommend switching to the latest version of MyEclipse i.e MyEclipse 2013 (formerly known as MyEclipse 11), to take advantage of over 4-5 years of development time and enhancements we made since 8.5 release. If you are having a license for MyEclipse 8.5, then the same license can be used for MyEclipse 2013, as our licenses are time based , not version based. For more information on MyEclipse 2013 and the download links, please take a look at this link – https://www.genuitec.com/forums/topic/myeclipse-2013-is-now-available/
If you are facing any issues to install our latest version – MyEclipse 2013, can you please tell us the reasons for not installing the latest version ?
If you still want to work with MyEclipse 8.5, I recommend you to update your MyEclipse 8.5 to MyEclipse 8.6.1 from Help > MyEclipse Configuration center > Software > Software updates available and check whether you can replicate it in MyEclipse 8.6.1 ?
If you are still facing issues in MyEclipse 8.6.1, please answer some more questions to help us investigate further :
1) Can you please share your installation details from MyEclipse > Installation summary > Installation details ?
2) Can you please make sure that struts config file is opened with MyEclipse struts 2 config editor ? Right click on config file > Open With > MyEclipse struts 2 config editor.
3) Clear the contents of .log file which is located at <Workspace Dir>/.metadata>.log file, replicate the issue and attach the log file here.
Let us know how it works for you.