Ver 2017.5
When trying to add items to the sequencer, the Edit Display Window will not open. Another user opened this setup and had the same issue, he delete the reference to the perspectives in the rgb_effects.xml file n it worked. These issue occurred on several different shared show directories I have but if I delete the perspective reference it works.
Here is a link to the show directory that also contains the package logs zip as well.
https://www.dropbox.com/s/uyw54eiwg6zyqrh/Xlights_test_2017%20Package.zip?dl=0