Just realised, that some of my apps are not supported on Tablets. As you see on the screen, Samsung Tab S2 is not supported.
The reason was described in the post on StackOverflow Why is App not compatible with Tablets after update
You should add the following rules to Manifest.xml file.
//Special rule to support Samsung S4 devices.
Update: Infromation about Samsung S4 support can be found here Any way to support samsung galaxy s4 using compatible screen sizes