External Editors and Collections
I'm using Lightroom Classic CC v. 7.1 for Mac. Previously, when I edited an image from a collection in an external editor, the output image from the external editor would be added to the same collection. A stack would be created with the original RAW file and the new tiff. Recently while editing some photos, I opened them from Lr in various external apps (Photoshop, ColorEfex, PortraitPro) and these generated new tiff versions that were stacked with the original files in the collection as expected. However, when I closed Lr and then reopened it, only the originals are now in the collection. None of the edited files are listed (I checked different filters as well as with filters off). If I go to the publish service in the Develop module, I can see the edited tiffs that I published in there. If I navigate to the folder where the originals were imported in Finder, I can see the edited tiffs in there too. However if I go to the collection in the navigation sidebar, only the RAW files are visible, there is no stacking badge and the edit history does not reflect that it was opened in an external editor.
Is this a change to handling files from external editors and how can I revert it to the previous behaviour?