Hi.
I’m stuck with an issue that’s completely blocking my MetaHuman workflow on Mac (iMac M1, macOS Tahoe).
In Unreal Engine 5.4 and 5.5, Groom Strands (Alembic Groom) displayed perfectly. Everything was visible and working fine, aside from the usual simulation limitations on Mac.
But starting with UE 5.6, 5.6.1, and now 5.7.0, the groom simply does not show up.
It imports correctly, no errors, everything loads… but the strands are not visible.
Only Hair Cards work, but that’s not what I need, I need Groom Strands, just like before.
Here’s what I’ve already tried:
– Groom plugin enabled (obviously).
– Disabled Virtual Shadow Maps.
– Previous macOS version and the current one (Tahoe).
– Multiple Xcode versions (16 up to the latest).
– Clean project and migrated project.
Nothing. In 5.4 and 5.5 the strands show with zero issues. In 5.6+ they vanish.
I don’t think it’s a hardware limitation because they were visible before. It feels like a clear downgrade.
What’s frustrating is that I barely see anyone in the community mentioning this issue, as if no one with an M1 Mac is experiencing it.
Is this a confirmed bug? A change in the groom system? A new Apple Silicon incompatibility?
If anyone has successfully displayed Groom Strands in UE 5.6+ on an M1 Mac, I’d really appreciate knowing what configuration, workaround, or specific setting made it work. My MetaHuman ends up “bald” and I can’t move forward.
Thanks.