Suddenly "Timer too close" canbus errors?

Basic Information:

Printer Model: VZBot
MCU / Printerboard: SKR 1.4 Turbo + Fly-SHT36
klippy(1).log (307.0 KB)

Describe your issue:

After printing perfectly fine several times yesterday (and several weeks before), I swapped to PLA from ASA today and attempted a print… every time, it aborts during the skirt now with a Timer too close error. Log also shows a bunch of stepcompress errors.
Klipper version is v0.10.0-631-g8a065287, I believe I updated last night after the last print from 627.

For testing purposes, I also ran an input shaper resonance test, which taxes the CAN bus pretty well as far as I know, and that ran through perfectly fine. Manual extrusion etc also does with no issues whatsoever.

Use ifconfig to check for error counts on the CAN bus. Dropped frames and errors

Run before and note current numbers, then run again after failures to see if they grow in numbers.