To reproduce select all the code and run hydrogen
than select the 'i' in the 2 line in the for loop "for i in range(10):"
temp = 0
for i in range(10):
temp += 1
print i
This causes line 3 "temp +=1" to become invisible also the insertion cursor is gone in there

If i restart the kernel it's ok
Or i can undo/redo to the point where i wrote the temp +=1 line
I am on Windows 10 if it matters.
This looks like a styling issue.
Which theme are you using and can you reproduce this with the standard theme?
@lgeiger you are right! I tried it with one dark everything is fine..
I am using the Atom Material theme.. can you try and reproduce it on your side?
Thank you!
edit: how would i go and find the problem with this? I'd like to continue using Atom Material :)
Thanks man
Most helpful comment
@lgeiger you are right! I tried it with one dark everything is fine..
I am using the Atom Material theme.. can you try and reproduce it on your side?
Thank you!
edit: how would i go and find the problem with this? I'd like to continue using Atom Material :)