Random segmentation faults under Windows and welle.io

[AlbrechtL]

I recently updated welle.io to use your driver under Windows 64-bit because users reported issues with the rtlsdr V4 dongle (see: AlbrechtL/welle.io#811 or AlbrechtL/welle.io#804).

Now I see random segmentation faults during operation when tuning to a new frequency. Mostly it happens at rtlsdr_reset_buffer(), seldom at rtlsdr_write_eeprom() (see screenshots). I never saw it under Linux with the standard Ubuntu rtlsdr library as well as a pretty old official Windows 32-bit version. Since I discontinued the welle.io 32-bit Windows build, I cannot use it anymore.

rtlsdr_reset_buffer()

rtlsdr_write_eeprom()

Welle.io RTL-SDR code: https://github.com/AlbrechtL/welle.io/blob/bb408728189fbfc8de16398c05c6604884a38214/src/input/rtl_sdr.cpp
Affected unstable build: https://welle-io-nightlies.albrechtloh.de/20240903_bb408728_Windows_welle-io-setup_x64.exe

Do you have any hint or recommendation how to find the issue?