We just upgraded to Media100 Suite2 and BorisRED5.
In RED4, I would often load a logo, add a 2nd layer with an animated highlight MOV file with alpha channel masked by a copy of the logo, then stuff it in a precomp container to reposition, resize, etc. Something like this
Masked with Logo
Loop turned on
PSD with Straight Alpha
In RED5, I set up the same thing but I'm not seeing my highlight layer when I resize & reposition. It does appear correctly if I don't move & resize the precomp. This is how a 3D container in RED4 behaved.
I did turn OpenGL off and have the preview quality HIGH and preview resolution FULL.
It's not just affecting the previews in RED though. When I return to Media100 Suite and render, I get the same thing that I see (or don't see) when in RED.
I experimented with various sizes and positions. It seems like masks aren't sticking correctly when the precomp is altered in RED5. This is how 3D containers in RED4/5 work too. I liked to use precomp containers in RED4 to treat everything like a single unified object. I'd actually prefer both types of containers to act as if everything inside was one object.
Can you please send us a RED settings file that demonstrates this issue? Having this would assist us in reproducing the issue in our labs. You can send that to us via email at this address: email@example.com. Please cc me (firstname.lastname@example.org) on the message.