The new DFFS Installer 2.0 is throwing the error shown in the attachment when loading an Edit form that loads an external JS file in the Custom JS section. This occurs on two different lists, each loading the same external JS file (from a _scripts folder), but using different Custom JS. I’ve modified the DFFS_frontend_CEWP.html file per the error message but get same error. Reinstalling Installer 18.104.22.168 eliminates the error when the Edit form loads (thankfully).
While inspecting the lists I’ve successfully moved to DFFS Installer 22.214.171.124 (they don’t call an external JS) I noticed that the top web part for the form loads DFFS_loader_overlay.html and the bottom web part loads DFFS_loader_v2.html. Is that to be expected?