Geometry Guides not working on Mac

Hi all,

I'm having issues using the guided perspective correction in Lightroom, specifically on Mac. 

When I go to draw the perspective guides on an image I can see the guidelines appear, but the correction doesn't get applied to the image. The preset options (Auto, Level, Vertical, Full) work as they should.

The strange thing is I'm able to make the guided corrections using Lightroom on my Ipad - the lines draw on and alter the perspective in real time. The changes made on Ipad also sync back to my Mac and display correctly, but if I try to edit them on the Mac, no changes appear.

Doing the reverse action (Mac to Ipad) doesn't work and the geometry section in the edit window remains blank. All other edit settings are syncing between both devices correctly regardless of which device they are made on.

Hoping someone can shed some light on this!

Thanks,

Owen