When in the End with the visual effects on it's impossible to see anything. Randomly there will be some “light” which would show where the Endermen and Ender dragon is
MCPE-201974
Vibrant Visuals: Impossible to see anything in the End dimension
Resolved
Fixed
1
Thank you for your report!
However the issue has already been reported by other user.
Please use search box to find if the bug has already been posted.