I've got a weird problem where Massive works in the standalone Komplete Kontrol application but not in GarageBand through the Komplete Kontrol plugin. I'm running Mac OS 10.15.4, GarageBand 10.3.4, Komplete Kontrol 2.6.4 (R211), and Massive 1.5.8 (R64). I obtained the Native Instruments software after purchasing a Komplete Kontrol keyboard. The included software is all up-to-date. The symptoms are that I can start the standalone Komplete Kontrol application, select Massive, and then select presets without any issues. However, if in GarageBand I select the Komplete Kontrol plugin, and from there do the same thing, after selecting Massive and attempting to select a preset I get the error, "Loading Issue, Plug-in not found. Please open the standalone application to rescan, or rescan manually in the Plug-in preferences." So I did indeed rescan, but it didn't help. And besides, the standalone Komplete Kontrol application doesn't have any problems loading Massive. It's only attempting to use Massive from within Garage Band using the Komplete Kontrol plugin. Furthermore, I can also use Massive from within GarageBand directly if I select it explicitly as a plugin. I can select from there the various presets without any issues. I've tried reinstalling the software plus rebooting the system to no avail. Pretty much all the other installed software components work fine (although I had similar trouble with Battery and Maschine 2 Factory Selection, but I don't care about those items). It doesn't make sense to me why the standalone Komplete Kontrol application is fine but the GarageBand Komplete Kontrol plugin can't seem to find the Massive plugin. What further befuddles me is that GarageBand can find the Massive plugin when selected explicitly. So the issue is isolated to the GarageBand Komplete Kontrol plugin. Lastly, I've searched the web and the forums and can't find any similar reports, so I'm asking here.