The Add arrow disappears if I double-click the attribute directly from the Properties panel in 23.4

[C27618681pmp5]

as attach video.
If I expand the shape layer on the timeline, you can see the Add arrow.
However, if you double-click on the properties panel to expand the layer, there will be no Add arrow.
The Add arrow will not appear until the layer is re-expanded on the timeline.

[JohnColombo]

Hi @C27618681pmp5,

Thank you for reporting this issue. We are able to reproduce it as well and will be investigating a fix for a future version of After Effects.

Cheers,

- John, After Effects Engineering Team