You may be able to resolve it by using a 1/4 inch jumper from effects send to effects return. I believe this may have been designed more to suit a 4 cable method wiring system. Use a patch cable to connect the effects loop. Hopefully the problem goes away.
It looks like you are inserting your output cable into the fx-send section before the MOD SPACE modules, instead of output.
You may be able to resolve it by using a 1/4 inch jumper from effects send to effects return. I believe this may have been designed more to suit a 4 cable method wiring system. Use a patch cable to connect the effects loop. Hopefully the problem goes away.
only delay does not work for me