Hello,

I'm trying to use CHOP inside a SOP-solver. It seem to crash always after playing the timeline.
I am troubleshooting, so in this project, the The CHOP network only imports the geometry and passes it on.

Is this a limitation, am I doing something silly or is this a bug?

I'm using version 15.5.565 and I'm on an Imac with an AMD Radeon R9 M290X 2048 MB

While it's possible you're doing something silly crashes are always bugs. Houdini should not crash due to what you're doing. Please submit a bug.