This has worked for me in quick reply, paste your link into your reply, post reply, then immediately edit your reply, highlight your link, the insert link then becomes enabled click on insert link, now paste link into box that drops down click on insert and your link becomes live now resubmit your post.
Though in standard reply my link becomes live the moment I paste the link into reply. eg https://www.google.com.au/
This has worked for me in quick reply, paste your link into your reply, post reply, then immediately edit your reply, highlight your link, the insert link then becomes enabled click on insert link, now paste link into box that drops down click on insert and your link becomes live now resubmit your post.
Though in standard reply my link becomes live the moment I paste the link into reply. eg https://www.google.com.au/