Bug? Program changed from OT to DT

Have the OT midi out > DT midi in.

Midi sync menu on OT
Program send enabled, Set to channel 5

Midi sync menu on DT
Clock and prog ch receive enabled

Channel menu on DT Prog channel in channel 5

Switch a pattern on OT and the DT pattern does not change.

Is this a bug?

Not a bug.

OT Settings , send pattern change ON.
DN settings, recieve pattern change ON.