[Greg McKaskle]

First off, that is quite the error message, but to answer the question.

It looks to me like the flatten and unflatten nodes do not match. You turned off the prepend size on one and left it unwired and on on the other. My suggestion would be to delete the False constant and leave it default. The case where you decide not to send size info is when it is a fixed amount in the protocol and the size is just extra overhead.

Kinda like in the other threads about comms, rather than delay your read loop, you can just let the read control the speed of communications. If you aren't careful, your read gets a little behind and cannot catch up.

I can't see a delay in the write loop, but hopefully something throttles how often it sends data.

Greg McKaskle