While using an Akai Midimix controller, PD stopped working, and the message, "warning: MIDI timing FIFO overflowed" appeared on the console. What caused this? How can I prevent it from happening again? I'm using vanilla 0.56.5 on Windows. Most of the time it works fine, but this has happened a couple of times. I've got a live performance coming up in a couple of weeks, and I don't want PD to fail during the performance.

sounds like youre sending too many signals. you should print to pd window the midi out numbers and look at how many times youre sending numbers.

@willblackhurst I'm just turning knobs and sliding sliders. I wouldn't think that would send a huge number of MIDI messages to pd. The Midimax has a button that sends the states of all the controls. When I press that button, it sends 59 MIDI messages to pd at the same time. That doesn't cause this problem. I'm not sending any MIDI messages to the Midimax from pd.

When the problem happened, pd not only stopped responding to MIDI messages. It stopped responding to mouse clicks and everything else.