max freezes when i try to pick object

[3DCR]

That's odd...is your sphere incredibly huge or something?

Are you able to successfully load and playback the official VDB example files (available on the tyFlow download page)?

the sphere has only 9800 polys / 4902 verts and yes i was able to run tyFlow_vdbSpherePack_001.max without any problems

But I think i found the problem.

Inside the sphere is a watch model, which i did a last year

i created a completelly new file, created the sphere and tyfl;ow and now it works like a charm

So I guess, something inside the "old" file gave tyflow a hard time. Still no idea what it is, but at least i found a solution