Reporting wrong extruder temp after restart

Basic Information:

Printer Model: Voron 2.4 350
MCU / Printerboard: Spider 3.0
klippy.log

klippy.log (401.2 KB)

Hello!
I have a weird problem: if i use save_confg while my extruder is at set tempereture, after restart, for a few seconds extruder is reported to -2000 degrees, and climbing up until the real temp.
at a quick glance is not reported in the klippy.log
Capture

a screenshoot from home assistant

I believe that you have developed an electrical problem in your PTC wiring.

Check the connections and the resistance value of the PTC at room temperature (approximately 25C) and see if that matches your expectations.

I don’t believe so. I have the same problem with 2 different PTC thermistors. With 2 wires and 4 wires.
PTC is connected to an ebb36, short wires.
Everything works fine, the only problem is that if I issue an heating command after a klipper restart, without waiting about 5 sec, klipper gets in to an error state. And it’s annoying that it’s messing up with the graphs. Anything else works perfectly.

I was reacting to the screen shot showing an extruder temperature of almost 5,000C after -2,000C.

Maybe somebody can comment on the software aspects of this.

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