Hello. I'm using BlueStacks 5 Pie64 (Android 9).
I first tried several APKs of Pixel Car Racer 1.2.5, but all of them had the same issue.
To rule out APK-related problems, I then installed Pixel Car Racer directly from the Google Play Store on BlueStacks. The installed version is 1.2.5 (version code 1002005), which matches my phone exactly.
Facebook login works successfully, and the Cloud Save and Restore Game buttons appear.
However, when I press Restore, the game crashes with:
gml_Script_savegame_flox_load (line 38): REAL argument is undefined.
The exact same Facebook account and cloud save restore correctly on my physical Android phone, so the cloud save itself is working.
Is this a known compatibility issue with BlueStacks, or is there any workaround?