Same image sequence one offset but not the other

Question

• plane A assigned material A that has an image sequence.

• plane B assigned material B with the same image sequence.

When i change the frames offset of the image sequence in material B both are changed

How to offset only one without effecting the other?

Answer 1

Make sure that materials is different. If it is not true, you will see a number near material name:

In this case press on digit to make independent copy

Next step - image node. Click on digit here:

Also mesh data can be linked:

So do you understand the rule? Remove all digits to make independent copy of material, image, mesh data.