Problems with shadows after Building

After I build light, shadows of some objects start to be displayed incorrectly or not at all. The shadow starts to work properly if the move object.

Here are screenshots.
On the left is the scene after the build, and on the right the same scene after I moved objects.

What could be the problem and how to fix it?

Most likely your lightmap resolution is just too low. This troubleshooting guide should help you.