It happened to me twice, once at 4 hours of printing and another at 10 hours with pi zero 2w klipperscreen

Yet another Timer too close

Sineos August 29, 2023, 5:53am 5

Topic		Replies	Views
"Timer too close" errors making printing impossible General Discussion	4	524	April 24, 2024
"Timer too close" at specific point in a gcode General Discussion	9	432	July 23, 2024
Timer too close, multiple fans General Discussion	23	279	November 9, 2024
Klipper: "MCU 'mcu' shutdown: Timer too close" General Discussion	4	153	August 27, 2024
Timer too close, trying to understand log files General Discussion	1	552	May 8, 2023