Windows 10 sync does not work

Description of the issue:
Synchronization does not work even though I reset the settings. Even when I say leave the chain, it doesn’t leave. (Windows 10).

Steps to Reproduce (add as many as necessary): 1. 2. 3.
I left the sync chain and tried many times but couldn’t find a solution.
Reproduces how often:
Continuous
Brave Version(See the About Brave page in the main menu):
Windows 10: 1.16.72 Chromium: 86.0.4240.183 (Resmi Derleme) (64 bit) Sürümü
GNU/Linux: 1.16.72 Chromium: 86.0.4240.183 (Resmi Derleme) (64 bit) Sürümü
iOS: Version 1.21(20.10.30.21)
Type of devices currently running on the Sync chain in question:
Totel: Windows(public/stable) , GNU/Linux(public/stable) and iOS(testflight/beta)
Additional Information: