Hi i had to update an older site recently, now everything( joomla, K2 and other components) are all up to date.
However when trying to add a new article, there is an issue with adding the tags to the document. When we type in a tag, it is not autoloading previously used tags anymore, it keeps on loading. Manually finishing the tag however, will work, but then the creation date of the article is made empty.

Any tips?

Hello Joost,

For the time being you can update to the DEV version, github.com/getk2/k2

A bit late,
but updating to the development version did the trick.

Thank you for letting us know Joost :)