Canvas blacks out when zooming in when using 2 or more fisheye assistants,black also depends on scale of fisheye assistant , if assistant is covers the whole canvas blacks out at (suppose) 100% zoom , if assitant scale is small , can black out at 141% zoom.
STEPS TO REPRODUCE
1. Any size canvas
2. Add 2 or more fisheye assitants
3. Zoom in
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
This bug has already been reported.
*** This bug has been marked as a duplicate of bug 401940 ***