This is related to issue discussed here:
However it's marked as "answered" there whereas it's not. That is why I'm starting another thread.
MacOS. Unity 2018.3.8f1. Rider 2018.3.4. Without Toolbox.
The breakpoints for some of the classes are greyed out with an error: "not found loaded method for...". This happens for newly created classes in some cases, for example when I add a new file directly ti unity.
The project is on an external SSD and I cannot move it to my main drive. I already faced this before, but at that time I fixed it with this:
Then I used Toolbox, now I'm not and the way in that post does not work for me anymore.