@beem Yes, you cannot rename main.pd........ it's the folder that can be renamed.
@JackOats No. In edit mode drag across the [declare -path patch_editor_abs] with the mouse to select it and then copy it and paste it within the main.pd window before editing it.
If @beem has not solved the problem for you then.........
Let's try something else. Trying to find what is going on.
On your screenshot were a lot of the modules named in red and marked couldn't create.
Choose one, say basic-osc.
In main.pd click on the file menu and then "Put" "Object" and then type basic-osc into the object.
Does it create?....... pop up as a bigger window with the oscillator in it?
No?
Go into the patch_editor_abs folder and copy basic-osc.pd and paste it into the Pd/bin folder, or into the "extra" folder if there is one (the one that contains the ggee folder).
Back to main.pd and try putting the object basic-osc again.
No?
Yes?
If it does then try the module button for basic-osc.
Does it now work?
No?
Copy main.pd into the patch_editor_abs folder..... open it..... and try the first step again (put, object, basic-osc).
If none of that works then I think it must be a security permissions problem.
David.