UI bug: vertical blue lines

Hey. I experience a bug on the interface: there are two vertical blue lines on the height of the page. It happens on any ide type page. I experience it in Chrome on Ubuntu. I attach a screenshot:

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Seen it too. Only.on windows in Chrome.

I’ve found the problem source: I had the Chrome extension “CodinGame IDEA Editor” v.0.3. After I disabled it, the lines disappeared.

CodinGame IDEA Editor is not a official app maintained by CG :confused: