A bit of history: The resynthesizer plugin goes way back. It is used to create seamless tiles. You find it in Filters -> Map and the dialogue in Gimp 3 looks like this. Give it a try - does it work ?
The add-on plugins and the ones usually needed heal-selection and heal-transparency are separate plugins that use resynthesizer and as you say register in Edit -> Enhance. That is where the error message comes from. The heal plugin can not find the resynthesizer plugin when it is incorrectly installed.
"unknown sources" What is unknown about the ones I posted here; https://www.gimp-forum.net/Thread-Resynt...ows-Gimp-3 Up to you what you use. Subject closed as far as I am concerned.
The add-on plugins and the ones usually needed heal-selection and heal-transparency are separate plugins that use resynthesizer and as you say register in Edit -> Enhance. That is where the error message comes from. The heal plugin can not find the resynthesizer plugin when it is incorrectly installed.
"unknown sources" What is unknown about the ones I posted here; https://www.gimp-forum.net/Thread-Resynt...ows-Gimp-3 Up to you what you use. Subject closed as far as I am concerned.