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Adding layers causes cells in other decks to shift downwards

Posted: Fri Feb 06, 2026 07:03
by KevinHughes
When adding layers, do you run into this problem? I'm running Arena, but this also happens in Avenue without using groups. This is not technically a bug because it's the default behavior. What new feature would have to be added to change it?

Basically when I add a new layer above or below any layer that is not the topmost layer, all content in all other decks is shifted down by one cell, which breaks my entire composition. That means links to video sources no longer work, content in layers with specific settings now move to different layers with totally different settings, etc. To fix all this I have to manually move cells in every other deck and test them.

Refer to the attached image as an example. In Arena I have three groups - one for visual content, one for audio tracks, and one for lights. I run all three and always expect the layers in each group to always stay in each group. Isn't that the purpose of making layer groups? Otherwise, what's the point if layers just move from group to group at unexpected times?

When I add a new layer, the content of every other deck shifts down by one cell. Images or video now appear in my audio group. Audio content now appears in my lights group. If I had my groups reordered in a different way, images and video originally from other groups would now be driving my lights! My monitor preview and advanced video output (which uses my visuals group as a source) get completely broken! Anything that uses a group as a source, or even a layer as a source, is now broken depending on which cells were shifted.

I have dozens of decks in my compositions and must often add, remove, and duplicate my layers (particularly audio and lights) to accommodate different venues' capabilities. I love Arena but I cannot afford to take the time to fix things every time I add a layer, please help!
Adding Layers 2.jpg

Re: Adding layers causes cells in other decks to shift downwards

Posted: Fri Feb 06, 2026 11:55
by Zoltán
Decks are the collection of clips. Layers are part of the composition structure, not stored in the decks.

The clip grid is basically loaded into the composition structure, not touching existing layers, and adding layers if there are more rows of clips than there are layers.
This separation allows loading decks from any other composition directly.

When you add a layer, and move it around, then switch to a different deck, the clips of that deck load in the same row number as they were in before. Though when you moved a layer down to the middle, the end result you'd see in the deck switched to would be the clips from this layer, playing in a different layer than they were in before. A clip from layer #2 would still be in layer #2.

We're looking into the possiblitly of providing more options on this behavior.