I hate to add to this thread, but I'm at a loss now.
I had successfully installed KCTL into v4 and v3. It worked perfectly fine up until about 2 hours ago. I had not changed a thing. I wanted to test something in v3 for KCTL and then get back to v4. Once I tried opening v4 again, it crashed during startup.
To get to the bottom of this, I uninstalled KCTL (including the add-on manager) and re-installed it -> to no avail. Then I thought, what the hell, let's start with a fresh v4 install, I hadn't installed that much yet. Did that, worked flawlessly. Then re-installed KCTL -> same crash.
I really don't know what's going on, reading all the above issues and experiencing mine. And I don't want to be in Umberto's position. But something is wrong...
Was anything changed in the KCTL installer (Live update) over the last say 3 to 4 hours (between 1600 CET and 2000 CET)? That's the only clue I have at this point. Because it did work until then :O.
Edit: Even after only installing GSX (no other FSDT scenery is installed in v4) now lets P3D v4 crash at start up. Everything works fine until I install anything FSDT... I'm about to give up. v3 works flawlessly.
Edit 2: Once I uninstall GSX P3D v4 will start up as usual and work perfectly fine.
Edit 3: Tried the same with KLAS now -> same result. Once I have installed it P3D v4 crashes. Upon uninstall everything works fine...
I don't think there is anything else I can try?
Jan