Hello dear @linuxgurugamer !
As usual thanks for your hard work.
After numerous tests, removing this excellent mod (and others), i have finaly come to the conclusion this one is causing a strange Gosht/duplication issue when loarding the VAB.
To be clearer : first you create a ship, save it. Then you launch it. You come back to the VAB. The vessel is already loaded. Then you click on it. It creates a duplicate, following the not-released-click. Should you launch it again, the duplicate will remain when you go to the VAB another time. You may try to load another vessel. You launch it. You come back to the VAB. Ah! The gosht of first vessel is back.
Should you have the will & time to try to resolve this issue, please find following : my log, a picture to explain, a Ckan mods import list (there are only a few mods), and a save file :
https://drive.google.com/drive/folders/1_SbFlPLLRVPLL32avNRMyeOQQoCbsySb?usp=sharing