additional info – the tech just came through with this –

To illustrate what I was talking about, a typical controller message
might be

B0 07 20 (CC7 value 20h on channel 1)

merging with a MIDI clock message it may look like

B0 07 20 F8 - the Eventide should have no problem with that

but it could possibly receive one of these other possibilities 

B0 F8 07 20
or
B0 07 F8 20

as it is permitted for real-time messages (clock) to be interleaved
between the bytes of a normal message and this is what could be causing the eclipse problems

he's going to write a firmware update to prevent this interleaving - do you think that might solve the problem?

best

sim