Anycubic Kossel not printing in certain corner

Hi guys, 

 

I recently got the anycubic kossel and have had it running great for around a week now. However, when I try to do bigger prints, it will get to the bottom right corner and only that corner and will not print there. The head will move over the area and follow the correct path but it sounds like its retracting the filament when it gets to that corner always. I have solved some problems by rotating prints to avoid the corner but I would like to fix it ideally. 

 

It doesn't look like a levelling issue as it stops immediately at the corner with no explanation.

 

The software I am using is Ultimaker Cura, but the problem persists with different prints so I believe it isn't an individual corrupt file. 

 

Any help would be appreciated greatly.

 

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