Cant add other platform links.

[The Doll Advocate]

When trying to add my youtube link in profile it tells me that only alphanumerics are allowed .
But all links typically have a forward or back slash. So i am unable to patch in my link .
When did this change occur?
And how can it be corrected?

[Tsall]

Don't paste the full URL, just the channel name. Leave out https://www.youtube.com/@ because that will be added automatic.