Version 25.1 introduced a significant change in how C++ based SDK plugins are loaded on macOS. Adobe deprecated older methods for adding PiPL (Plug-in Property List) resource files, causing some third-party plugins (like those from RJ-Graffix ) to stop loading until updated.
: Some versions require disabling System Integrity Protection , though this is rarely needed for v25.1. adobe illustrator 2021 v251 tntdmg work