FluidFrames and Vehicle Bar?

[Roane]

According to the comment thread on the nMainbar addon, the fact that my regular bars sometimes don't return (usually if I'm forcibly dismounted and still in combat) after leaving a vehicle has something to do with using FluidFrames and similar addons. The inability to restore my usual bars without a console reload has gotten me into trouble a time or two (as with the Black Knight fight) and makes me nervous about going to Wintergrasp.

Does someone know if there is a solution, either a fix for when it happens that doesn't require a console reload, or a way of preventing it entirely?

Barring that, can someone tell me how I can adjust the scale of the party pet frames (default UI) without a mod like FluidFrames? This is the only thing I'm using it for. (As a click (Clique!) healer, it's hard to hit those tiny little pet frames when the action gets heated.)

Thanks for any help.