Alembic geometry cache loading as single frame (should be 150)

Hey guys,

I’m trying to import lightning sim from Houdini. It’s in the form of polygons so I’m exporting as alembic. When I reimport the alembic in Houdini, the cache looks correct and the animation plays just fine. When I import into Unreal, it seems to read all of the frames. I don’t get any errors and the mesh appears in my viewport when I add it to my scene. However, it only ever displays that specific frame out of what should be 150 frames. Same thing when I add it to my sequencer, it appears as a single frame even when I drag the durration out to 150.

I did a quick test with an animated sphere which loads in correclty and I can see it animating. So I don’t think it’s an issue with the way I’m importing it. It seems like an issue with my cache but I don’t know what else to try in order to troubleshoot.

Any ideas would be greatly appreciated!

Thanks

If anyone else comes across this issue, it seemed to be because I had empty frames in my geometry cache. Making sure every frame at at least one piece of geo visible fixed it.