Well, let's do it.
First about the HUD, in order to clarify:
My last change was two weeks ago, i just altered the msh option file of the reticule.
Then
I didn't work on the mod until yesterday. Just added a new tie fighter type, including new odf, new req and new model etc. Everything was okay when tested yesterday night. No weird HUD.
The scripts/mission.lvl hasn't been modified too.
This afternoon i decided to play with DT Rising Son as a distraction, it gaves me some ideas to improve my own project. I updated one lightsaber's hilt model.
While testing that new modification I had the HUD issue.
I decided to uninstall DT to see if it could work, but no, unfortunately.
I made a manual clean, I removed the new hilt, but still not.
The real issue is how the game supposed to modify the HUD (I assume this new thing has to do with the HUD) even if I didn't copied manually a new ingame.lvl file to my mod's directory?
Or maybe it's not part of the HUD itself.
I remember seeing this in a few other mods (bfx maybe?), For exemple I had this when playing MEU for the first time.