Hoping to gain insight on a strange problem that just recently cropped up in my Business Dropbox, in condition of internal colleagues sending the direct file link to me by email to documen in common shared projecft folder, when opening the link I am no longer seeing the Open button. This is new, until perhaps 4 days ago had no issue. It is possible some update has triggered but
For clarity, I have reviewed the help guide on Open Button: https://help.dropbox.com/view-edit/open-button and tried actions suggested there up to including uninstalling Dropbox App and reinstalling
Oddly I find that if I use Copy Link to the exact same document shared (in same shared folder, no harddrive moving about), and past into browser, Open button appears
As opened in direct email link (yes signed into Business Dropbox)

If I however Copy Link and then past the link of the exact same document into a new browser tab Bingo the open doc appears.

While a workaround I am hoping someone may have a clever insight as to the how and why this is occuring as much more efficent to not have to do the copy link step and just in case this may not work in call cases.
System: Windows 10 (latest update installed etc)
Browser: Chrome Version 114.0.5735.135 (Official Build) (64-bit)