Motion Blur issue?

[theamoebason1]

Hi. If I animate a projecting lights target (a gobo) I get no motion blur at all on the projection. Is this a known issue or am I doing something wrong?

[theamoebason1]

- tried with Arnold and same problem - no MB. With Redshift trial it works. Ideas anyone?

[theamoebason1]

update - OK this works with vray lighs, but getting a gobo effect from a vray light isn't all that successful so I use a max light with a vray shadow where the MB doesn't work...