Match Properties slow/crashing Rhino 6 in complex files

Anyone noticing a large performance drop/crash for Match properties when matching a large number objects within complex file in Rhino 6?

Matching the properties around 800 curves within a file with 158 block instances, 213 hatches, 27364 curves, 194 meshes, 45 texts etc. causes a crash in Rhino 6 where in Rhino 5 it could handle it.

For anyone else with this problem - turning off the material option in Match Properties solves this issue.

Maybe you could still zip and upload the file to McNeel tech support for analysis and bug-fixing…

Thx, --Mitch