Maya 2015 uv editor problem, bug?

Limewax

Question regarding a potential bug I'm experiencing with Maya 2015 and the UV editor window. When I take a UV shell and manipulate it in any way, the settings for the shell line weight and the grid size all scale up to some maximum value and it makes it nearly impossible to work with. Has anyone experienced this before and if so, how do I get it to stop doing this? Example shown here (left side is how I anticipate, right side is what happens if I do any manipulation to the UV shell in the editor)

Edit: I've narrowed the problem down to the userPrefs file, but thats so vague that I've went through nearly each one of these settings and still cant figure it out :[ Guess I may just end up purging it

Limewax

Okay so, resetting the "userPrefs" file is currently the only solution to this. Its suspected that older versions of Maya preferences (like Maya 2014, when I'm currently running Maya 2015 but still have 2014 installed) sometimes mistakenly get loaded, but Autodesk is not officially acknowledging this as a bug yet.

See here:

https://forums.autodesk.com/t5/maya-general/uv-texture-editor-thick-lines/m-p/5400219#M21232