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Chaining a large number of MIDI devices together is not an Eventide issue, or a pedal issue, or a MIDI controller box issue– it’s a fundamental limitation of the way MIDI signals are usually sent in a chain. Typically, each device has a optical isolator/coupler to make sure there’s not actually a direct electrical connection from one device to the next. This can slightly round off the theoretical square-like signals of a MIDI data packet.
Chain enough of these optocouplers together and the integrity of the signal gets to be a problem. The solution is to use other hardware to send duplicate messages out in parallel and not have so many daisy-chained.