I've just installed Tray FM on my PC, but I've found two problems:

1) When I try to add a new folder, the new folder doesn't appear in the folder list.

2) When I add a new station importing it from Radio Browser sometime the new station appears but sometimes doesn't.

What the solution could be?

For my second question it seems as if the new stations could be imported only one by one, closing and opening the Radio Browser every time. It's very uncomfortable but it works.
For the first question I don't have found any solution.