Autosave not working in latest nightly

Description

Maybe I'm missing something, but after crashes due to issue #9994 (closed) I found that up to the latest nightlies Kicad doesn't seem to be creating any autosaves anymore.

There is no _autosave-Files in the project folder and clicking e.g. Rescue in the menu of pcbnew only brings up an error message that no _autosave file exists:

The menu settings were at default before and I tested changing them:

To no avail, there is still no _autosave-files after doing changes to the schematic and/or routing.

KiCad Version

Application: KiCad PCB Editor (64-bit)

Version: (6.0.0-rc1-493-g2ecd5ac909), release build

Libraries:
	wxWidgets 3.1.5

Platform: Windows 10 (build 19044), 64-bit edition, 64 bit, Little endian, wxMSW

	wxWidgets: 3.1.5 (wchar_t,wx containers)
	Boost: 1.76.0
	OCC: 7.5.0
	Curl: 7.78.0-DEV
	ngspice: 35
	Compiler: Visual C++ 1929 without C++ ABI

Build settings:
	KICAD_USE_OCC=ON
	KICAD_SPICE=ON

Edited Jan 10, 2022 by AndyJ