Come to think of it it has only been on the T2+, usually dragging a new button or channel icon from the library

The new version will be here soon so we will see what else happens when we do library drags...icon drags...ir drags...and whatever else we can drag.

Pedro, I dont know if this would work or not..Try opening it again, then save it as a new filename...maybe add the date, then add in the new devices

it might be trying to save a new version as an older file?? or still seeing it as and older file, saving it as a new system with new name might fix it, then save again before you add the new stuff...Just thinking...not positive