Thank you for your explanation. It seems that my system id is a long number (10 digits) and Widevine Sec Level is L1. Never checked on OOS.This is because your system Id is cracked,if you check with DRM info app it will show you 9 or ten numbers (normally on oos shows you 5 and this is the correct number for streaming apps to function properly). If streaming platforms are important for you stay on oos for now.
Do you know why it has happened?