Image item in sitemap

I have Openhab2 installed via apt-get on my Rpi3.

There is “image” item with refresh attribute in sitemap.
In basic ui the “image” does not refresh
In classic ui the “image” refreshes automatically within refresh timeout

PS sorry for my english

It’s a known issue that has been fixed and then broken again over the last few nightly builds. I believe a fix has been proposed, you just have to wait for it to get into the nightly.