Is anyone having problems using a cop node with a sequence as a background?

I am trying to use a file cop node with a time warp to offset my background sequence but it doesn't work if I use it in the 3D viewport I just see the first frame it works if I use from the disk, anyone else having this problem?

Thanks.

I checked three different build. Yes, same problem here.

I've never had problem with this
even now I checked and it plays as expected (12.0.581)

but what you may do is add View Roto parameters to your camera, there you can set BG for each camera separately and it has even parameter to specify COP frame, which defaults to $F, this may force the update

Thanks for the feedback I'll try that!

You can also try:

oppath/to/cop

in the Disk File field (not the COP field).

Even with the roto options for the camera the problem persists, it seems it is a cache problem, any ideas?

looks like a bug. you should submit it.
it appears to work fine in version 10.
-j

Same problem here with 12.1.33, only the op expression works

Thanks

twod
You can also try:

oppath/to/cop

in the Disk File field (not the COP field).

Marvelous! It works like a charm, thank you very much for the tip!