Timeline content element creates html mess

It seems that your Timeline content element has some wired bugs. I tried to modify an existing timeline by adding a new milestone, which fails completely and generated total html mess that was looking more a normal iteration than a timeline (but prints some html tags beside the text).

Then I decided to create a new timeline, but this also doesn’t work and any entry creates html mess… (please see the screenshot).

I’m using the newest version of WordPress as well as the newest version of enfold.

P.s.: I have regularly problems with your advanced editors where contents are not shown in certain editors, but a wired mixture of html tags and text. A reload of the entire page solves that error, but it really seems very fragile.