I'm using Scene in ArcGIS Pro and I don't understand why my Label Placement is grayed out even though I've selected my Feature Class in the Contents panel and the Maplex Label Engine is checked? I'm new to Pro and could be missing something obvious.
Still a problem in ArcGIS Pro 2.5.0 while in a scene environment arcgispro 2.5 yet another bug 3dlabels

How has this issue still not been addressed? Label placement in 3D should be pretty fundamental to functionality of Scene.
Still a bug in 2.8.0.
The bug's page is here: https://support.esri.com/en/bugs/nimbus/QlVHLTAwMDA5MzcyNw==
It says, "Not in Current Product Plan"
@Robert_LeClair, you are with Esri, correct? Can you offer an explanation/justification?
It is now November 2021 and I am having the same problem. I thought I was doing something wrong. Alas, it is a bug. ESRI: What is going on with fixing it? Any idea? Thanks!
03/2022 , still having this bug. Leader line does not display at all, unfortunately, in 3D.
I'm using Pro 3.0, which should allow for the customization of label properties in a scene. But I am having the same issue--all label position properties are greyed out, with the exception of the placement drop-down.
It's 2024 and this is still an issue. The entire ESRI UC this year was centered around 3D mapping--but we can't label scenes? What gives?
This issue was first raised in September 2017. Here we are in November 2024 (85 months later) and the bug which is preventing labelling in 3D scenes appears to still exist.