Hello, I'm a new user of Apophysis,
After working a tiny bit on my first flame, the editor window closed. Trying to open it with the button or the menu option didn't work. Closing Apophysis and reopening it didn't help either. The program became permanently corrupted somehow. ONLY DELETE THE Apophysis2.0 REGISTRY KEY FOLDER USING REGEDIT made the editor window work again.
I'd imagine this bug probably makes the program unusable since that window contains core functionality.
I don't think any errors were thrown when trying to open said window... it just wouldn't open.