I am trying to control the delay time on my lexicon mx300 fx unit. When i select the midi sync option it works a treat, however, the program changes stop working.
 
Also, it when i select midi sync on, and click apply, the mx300 changes to program #2 and if i try to change it with the units knob, it stays on #2   - crazy!?????
 
Can anyone help?

I have a workaround where i set the speed with midi controllers but this is not very accurate...