I have updated K2 to v2.2. After that you can't edit any k2-items. The edit-page are without any css-style.
It does'nt help re-install the plugins. The same bug occured with the example_k2_plugin.

I guess there soon will be an example-plugin for 2.2, but it would be great if someone could tell the changes needed for it to work pretty soon!

Hi
I had also updated to k2 v-2.2 and don't find any problem to edit new and old items, it is working fine to me. Please check your editor setting or something else.