System crashes on cancelling multi extruder filament change (Prusa XL 5T)

[iKonrad]

Description of the bug

The system crashes if an attempt for filament change is made for multiple extruders.
For me this is a 100% reproducible case and it happens to me everytime.

It does not happen if filament is changed using filament change option for a single toolhead.

Project file & How to reproduce

1. On Prusa XL, 5T (may be also applicable to 2T), select "Change filament in all tools"
2. Select multiple tools (for example, 3)
3. Insert new filament in the first tool
4. While it's loading the filament, click on "Cancel" button
5. The system crashes

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

2.9.0 (but it does not matter)

Operating system

Windows 11

Printer model

Prusa XL 5T

[CZDanol]

Hello.

1. What firmware version are you running on your XL?
2. Is this still happening on 6.2.0-alpha2?
3. What does "crash" constitue of? BSOD? If so, please could you give us a sshot and crash dump?