We are aware of a problem with editing workflow descriptions with special characters and are currently working on a hotfix release to be available likely next week.
In the meantime as a workaround could you try it without using colons in the description or with adding a linebreak after each colon.
Yes, to me this looks like the same problem to what @badger101 posted, as there is a colon as well in the second line of the description in “(https://…”