Custom Visuals Broken?

So I've been struggling with this for a few weeks, but now I can't even get a custom visualization to behave, so I'm fed up and wanted to reach out for a solution.  Here's the problem.  By the way I've tried starting from fresh on a new report, and still experience the same problems.

Around 2 months ago, custom visuals started misbehaving in the "Format" window.  It was mostly just an annoyance; the main area was when setting colors of various things, I'd choose the color for the option, and it would "jump" to a different color.  Green would turn to grey, etc.  The only way to override it was to use HTML to override the color.

Today, I was trying to edit a MAQ Gantt visual.  When I drop in my Category and my Start & End dates, the visualization shows up, but doesn't display the time as a bar.  Just little blips on either end of a non-existant bar.  When I add sub-tasks under Category, the whole visual disappears (except the timeline).  When I go to the Format window and try to turn "Category" on/off, it immediately reverts back to "on".  When I try to change any other option in Format, it jumps back to where it was originally.

This is really aggrevating and I am under a lot of pressure here.  I've tried doing a new report, I've tried downloading an update of the custom visual, etc.

I want to note... this is NOT JUST the MAQ Gantt visual.  These problems are with ANY custom visual.

Please help!