Updates check fail because winscp.net certificate cannot be validated

Hi,
I have exactly the same issue as in this topic: Certificate validation
I am on 6.5.3.
Is it possible that this issue is back?
Connections to servers via SFTP work fine, only the update fails

Certificate not trusted. Error: 800B0109 (A certificate chain processed, but terminated in a root certificate ...

This typically happens when your network/firewall/whatever replaces the certificate chain and the replaced root certificate cannot be verified by Windows Certificate store.

You can workaround that by configuring WinSCP with your replaced root certificate:
https://winscp.net/forum/viewtopic.php?t=31463#109038

Thank you so much, this was indeed what I needed to make this work.