Rotobrush 2.0 continues to slow down and hang during timeline rendering.

Credit for the fix goes to:  Jordan Clay

If you want to avoid reading all the posts, the answer is quite simple:

Simply install After Effects version 18.1  and your rotobrush will work fine as is did in the past.

The new updates after 18.1 are problematic and have bugs regarding rotobrush 2.0 and propagation.

BTW, the installation is super easy, just go to your Cloud and click the 3 little dots by After Effects.... then 'different versions' then install it.  All your settings will be there pre installed, not worries. 

Just ignore future updates and do not install any new AE updates until Adobe can fix the problem, which, after contacting the Adobe techs all I get is: "this is all news to us, surely the problem must be on your end" is the catch phrase they are using.  Funny, 18.1 works perfectly, the only thing changed was the 'update.'

(rendering or propagating, not sure of the term)  After rotobrushing the new mask, and seeing it in the timeline, and pressing Space Bar to see it in action.

After prior posting here, and not finding any answers to this problem with rotobrush 2.0 hanging,

I decided to contact Adobe and see what the masters say about this problem.

After trouble shooting, including removing preferences, and changing cuda to 'software only' the tech at Adobe was stumped.

Of course they were stumped, because it seems that I am the only one in the world with this problem.  The tech had no prior experience nor info about this problem on file.  I asked for a 2nd tech, and was refused. 

All the hundreds of people with this problem have either fixed it themselves OR never reported it, as again, according to Adobe I seem to be the only with this problem.

Adobe's Solution:

"We will look into the matter and send you an email"  

(taking a big breath here) aaaaaaaaaaaaHHHH 

Followed by:    ahahahahahahhahahahahhahah

Yeah right.  That is how Adobe brushes off their customers when they can't fix a problem.

..the old "we'll send you an email."  If I had a dollar for everytime I was told that, I'd be up a cool C note.

In the mean time, I'm paying $$$$ for this software that doesn't work.

The Rotobrush 2.0 is a crock.  It's full of bugs and simple won't render a scene as complicated as a shelf with bottles in the background.

IF ANYBODY READING THIS CAN HELP, PLEASE STEP UP TO THE PLATE.

All I'm doing is RBing a simple face in front of a shelf full of bottles.   The face moves and camera pans with him, not alot, but enough that it's too much to pen tool it, plus I've got 5 clips of this I have to fix.  Yes, its a busy background, but then why does the brush rendering work for the first few seconds then get slower, and slower, to an eventual hang????  

It should work, or not work at all, not this teasing madness.

My work around of doing a few seconds at a time is turning into a nightmare.  I need this software to work. 

Please somebody out there help me.  Adobe CAN'T FIX THIS, MAYBE YOU CAN.

my system:  32GB, Ryzen 7, gtx1050ti solid state drives. 

The roto2.0 does work with simple images and simple backgrounds, just not a shelf with bottles in the background.

Insane?  Yes.

Is this image really too difficult for rotobrush?? PLEASE HELP!!!  Thank you!!! Letty