I wanted to help somebody and quit my DE > NL project. Created a DE > PT project with a ProjectTM. Closed everything and wanted to return to my DE > NL project (yep, the one with the Loaders).
I untucked the ProjectTM from the Dashboard.
Opened my DE > NL project and saw that the DE > PT TM was loaded.
Please ignore! I didn't actually select the correct project. Too much quatschen, too little concentrating.