Recently I'm experiencing some odd behavior from Xcode. It jump up and down on its own, it does not render codes correctly.
Like this screenshot ↓
It's driving me crazy. Have this ever occurred to anybody else?
Is there a solution?
P.S. this problem happens with both Objective-C and Objective-C++ and with every theme I use. (Currently I'm using xcode 6.3)
Best Answer
Turn off the Show live issues checkbox in Xcode > Preferences > General (found near the top of the panel).
I was experiencing the same issue. I found this answer through Editor glitch when editing near end of long file in Apple's Developer Forums.
It worked for me running Xcode 7.3 with a 2706 line file. The glitch happened around line 2250.