Can't find any info about this elsewhere, so I'm trying here. I use EA 14 with SysML plugin. I have to share some of my models with colleagues using v13 or 13.5, and without the SysML plugin. First of all, there is no "save as .eap" option, but at least just deleting the x from .eapx makes it possible to at least open the file in v13. However, when the model is opened, all diagrams look terrible, and I can't seem to fix it. In SysML I use diagram frames on close to all diagrams, and it looks like it's this that messes things up. In v13.x, instead of a diagram frame, I get a background package symbol, with all the contents of the package listed on the left of the diagram (these versions of EA are installed on a military restricted network, so I can't take screenshots to share here), which looks very strange and cluttery indeed.
The real problem with this is that I can't seem to access or remove the package symbol in any way. Any tips here would be very welcome!! I really don't want to do anything to my original model, as that is modeled the way I want it to be, I just want the copy to be usable until the SysML plugin can be approved and installed (which, knowing the military, can take a very long time...)