I guess Gamemaker is doing something wacky, as there is no code interfering with any parts of GMLive, that I am aware of at least. Considering the additional check solves the issue, I'll just leave it in and let it be. Thanks for the reply.
Also I'm working on UI and menu positioning and wanted to praise your work on GMLive and give a huge thank you for making it. It just makes life with such things sooooo much easier. Appreciate you continuing to support it too, it really is an invaluable addition to GMS.