Disappearing lines in editor

Bugs
1

i’ve noticed that sometimes a line a code will disappear and after i scroll away so that the line is off screen then scroll back to it, it will reappear, anyone else notice this?

if i put a cursor it will act as of the text is there but it’s not visible

2

I’ve seen vanishing lines but only when they were very long. My base64 encoded zip library had to be split across 2 lines so the text was actually visible.