I may have just come across a bug relating to specific settings of the Multitap Delay block.
Not sure if it should be posted here or in a separate thread, please advise.
While testing out some of
@2112's blocks from the glorious block library he shared with us all I had my AXE-FX III lock up when adjusting some settings with a particular saved block.
I managed to re-create this several times with his saved block (Faux Rotary) and the issue persists when I recreated that block from scratch in a new preset. I saved it and attached it here. The settings are an edge case I'm sure but I stumbled across them pretty quick while messing around from Leon's starting point.
A few seconds after loading this block the AXE-FX III will become unresponsive, I/O meters frozen, some digital beeps and a nice high pitched sine wave wine then on some occasions the display went white. After a restart all is back to normal provided the block isn't saved in the preset that is automatically loaded on start up.
Test this out at your own risk, providing it so it can be investigated if need be.
Edit: Preset attached - commercial user cab in use, not included - ML Legends M55 mix.
Multitap block was in the upper row between the delay and reverb, this preset is essentially a template I made as a starting point preset suitable for AXE-FX III and FM3.