This is a common bug in unofficial builds due to proprietary Broadcom/Spreadtrum drivers. If this occurs, you may need to look for a specific kernel fix or "Wi-Fi fix" script zip provided by the developer on the original XDA thread and flash it via TWRP.
No, it is not “official.” Yes, there are bugs. But for a tablet that shipped with Android 9 and will never see an update from its manufacturer, a transforms the GTI9060i from a laggy, insecure paperweight into a usable Android device for media consumption, light gaming, and home automation dashboards. gti9060i lineage os verified
If you want to customize your setup further, I can provide additional information. Let me know if you would like me to: This is a common bug in unofficial builds
Even if you manage to install a custom ROM on this device, "Verification" is a significant hurdle: But for a tablet that shipped with Android
While not officially verified by the LineageOS team, developers on forums like XDA Developers have created unofficial ports: LineageOS 14.1 (Android 7.1 Nougat):
Swipe to confirm the flash. Wait for the process to complete successfully.
Flashing can lead to device malfunction or "bricking" if steps are skipped. General Installation Guide