Yes, I get the icon in the synopsis in the right corner - like in your screenshot.
I tried the clearing of the EPG cache. But it did not help.
Maybe I have to mention I did the test with MRMC on ATV4 and iPad. So, it's the Kodi branch. However, I will test it again with Kodi on Windows.
I removed the TVHClient App and installed it again. But it did not help.
Can I log/debug somehow - to see if the clients receive the icons or not?