Thank you for letting us know that you are unable to input text in placeholder link blocks.
I attempted to reproduce what you are experiencing in a new project, but I was unable to as you can see in the following short screen-capture: https://cl.ly/307d23dbc93a
Would you be able to provide the Read-Only link to your project?
I would be happy to take a look for you.
Also, can you please try the following:
(1) Try to reproduce the error while being logged into Webflow using Incognito mode with browser extensions turned off: https://support.google.com/chrome/answer/95464?hl=en
(2) If the problem persists, please take a screenshot of your Console and send it to me: https://cl.ly/2Q2l1g0B3v0s
Could you please let me know what browser version you’re using by sending me your information from this page? https://www.whatismybrowser.com/
There should be a small share link when you visit the page which you can send to me.
Thanks in advance!