Crash when slicing (2.7.2-alpha2)

[the-ress]

Description of the bug

I had an object sliced, then I decided to add another instance so I pressed +, then probably A to arrange them.

Then I pressed Ctrl+R and Ctrl+6 in quick succession to re-slice and switch to preview and I got this message:

Unhandled Unknown exception: terminating the application.

I took a full process dump at this point: prusa-slicer-24136-a.zip.

Then I clicked OK and got another message:

23:35:16: Internal error: Access violation - no RTTI data!
23:35:16: Internal error: Access violation - no RTTI data!

I took another full process dump: prusa-slicer-24136-b.zip.

Then clicked OK and the app terminated.

Project file & How to reproduce

Wheel negative.zip

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

2.7.2-alpha2+win64

Operating system

Windows 11 (22631.3085)

Printer model

Prusa MK4 IS