I was able to finally capture this error while doing a reasonable amount of preset management. Linking the screen capture video for
@Michael Pickens and
@Admin M@. See here
In this particular case, I was attempting to move a high CPU preset (1987x w/ Full-Res in the name) to another location. It's worth mentioning as others have highlighted the error has occurred with lower CPU and factory presets. I wasn't playing any guitar (was plugged in) or music through the AxeFX when an error occurred.
Approx step by step is below. I'm on Firmware 19.06 and Version 1.11.01 for Axe-Edit.
1) Rearranged 10-15 presets without any issue. Saved as I went along and moved in and out of Manage a couple of times. Note. The preset loaded when attempting the next step was ~70-75% CPU
2) Swapped 1987x w/ Full-Res preset to a new location (slot 28)... Successful. Previous location (slot 49) Axe-Edit was unsuccessful in saving the swapped 'Empty' preset
3) Closed Manage / Reopened... Full-Res preset is still in slot 49.
4) Loaded another preset with a much lower CPU ~70% usage and reattempted to Save... Unsuccessful.
5) Attempted to overwrite with another lower CPU preset... Unsuccessful
6) Loaded Full-Res Preset and cleared manually.
7) Copy, Save new preset to slot 49 // Clear slot 49... Successful
I hope this is helpful!