After update to macOS BigSur 11.1, no menu display with Safari Version 14.0.2 (16610.3.7.1.9)

[MA Lemaire]

When I go on a Confluence wiki page, I don't have anymore the menu on the left side of the page (empty page), plus at the top I have the menu title but I don't have anymore the scroll menu function, plus on the top right side, I don't have anymore my picture.

Reset history, cash, reboot PC, nothing solve the issue. No special extension on Safari.

If I use Chrome, everything work fine.

I never face this issue before when I was not on BigSur macOS.

Is there someone else facing that issue?

[MA Lemaire]

And I have that issue only with Confluence Web site, I don't have at all any issue with Safari and other website, so for me there is a issue on the coding primitive used on Atlassian Confluence and Safari last version on Big Sur.

[MA Lemaire]

Ouff, great, I'm not the only one. Because my problem happens when I upgrade to BigSure last week, and since, I have the problem. I had touch nothing.

[Anatolii]

Same here, looking for any fix, but nothing