how do your TIs respond to sysex?

[TOTAL]

how do your TIs respond to sysex?

Mine sometimes doesn't sometimes does. Checked in four configurations:

Yamaha RM1x sequence remixer
Cubase SX1
sx3
nuendo 3

In response to my question why TI deals with sysex so badly Access first told me to upgrade sx1 to sx3

then said cubase had been poor at sending system exchange messages for years.

now I have tested the matter with a hardware sequencer and things appear to be no better.

single message at a time, no controllers, no notes, slow tempo, slow enough for each set to be swallowed (plus a short break).

Please help.