Screen Glitch in Studio

When ever i open a place on studio this small line appears in the middle of my screen, the 4 videos show as much information i have about it with with no matter what i do it never goes away with it causing issues for me working on gui’s and even issues selecting stuff from scripts and it’s not the screen itself as shown in the video that has it only appear when i open a place.

what it does most(how it affects making games)

Running a game makes it disappear

toolbox(and any other widget window can cover it

loading a place

A private message is associated with this bug report

This is a duplicate:

Duplicate topic of Some random white screen which I can’t close at the left of the studio (where’s the toolbox at). Please refer to the post for further updates.