I noticed that when I go into QuickEdit mode for my custom post-types the screen real-estate is crushed into the left hand side of the available space. After investigation it appears to be a CSS setting from Pagelines that you're potentially inheriting from Bootstrap. The entry in question is the "float: left" here:
As an example this results in the following for my UOM custom post type:
Yet if I turn off the "float: left" in the debugger it returns to this:
Normally I'd just solve this for myself but as it's likely to effect others AND it is really hard to clear a "float:left" post-facto so overriding it nearly impossible (well at least it's harder than i'd have expected).