I just realized I forgot to reply to this.
It looks like it really was a duplicate of that issue... I'll add some thoughts there.
It's not a request for help, it's a bug.
GPU: DirectX hardware ray tracing capable GPU like NVIDIA GeForce® RTX 20 Series and higher, and AMD Radeon™ RX 6000 Series and higher
The Intel ARC is a DirectX hardware ray tracing capable GPU.
But this error message sounds like the game is checking for specific GPUs, not just for ray-tracing capability.
[media]Reply from @unknown:
Might be a bug, but you did ask "is there any public way to force-enable it?", which is why I suggested visiting Community Support.
I was encountering it with this outfit combination: all the "Void" set from the Realms promo free items from around when I filed MCPE-186810. See that ticket for a pcap of the traffic when it was broken for me.
Just switching the top was enough to fix the loading.
Top: I forgot what I had originally, but RGB Flame Aura Hoodie will do it
Bottom: Void Pants
Outerwear: Tainted Void
Headwear: Pulsating Void
Gloves: Void Hands
Footwear: Void Flames
Face Item: None
Back Item: Dark Void