I have come across an issue when replacing hyperlinks in emails. The scenario is: I have an email that I have sent that includes a link (a zoom meeting). I wish to send a similar email so I go to my sent items, find the previous sent email, and highlight, copy and paste the contents of the email that was sent to a new composed email. I then copy the new link, highlight the existing link and paste the new link in its place. I then confirm that I have the correct new link showing - I can see the meeting number within the link and it matches the new link. However after sending the email, it is then converted to a hyperlink, and when hovering the mouse over the link, it shows the destination as the previous link that has been deleted. This only appears to affect the html version of the email, so the plain text part is still correct. Understandably, the problem isn't immediately noticeable as the link still looks correct, and it is only when clicking or hovering over the link that the discrepancy is evident. I realise (now I am aware of the issue) this can be resolved by deleting the previous link first, then pasting the new link separately, but it would be helpful to know if there is a way to prevent this happening in the first place as it means having to remember that Thunderbird is quirky with swapping links.