Hi @gassim, we have discussed this internally. Sorry, but the behaviour of accepting the same invitation multiple times as the same user to act as a bookmark is unexpected, and we will be fixing this to hide the “Accept Invitation” button if the logged in user has already accepted the invitation. Instead we will display a message informing the user that they have already claimed the invitation link.
The automatic accepting of an invitation when opening the page was a security issue, which is why we changed to have the interstitial “Accept Invitation” page instead.
If it’s necessary for the user to keep coming back to the same topic, we suggest they bookmark it. Or, if you have some internal document where you put the invitation link, add a link to the topic in the same place for convenience.