Created attachment 121422 [details]
Filled caption window screenshot

1.) Have a document with a picture in it.
2.) Add a caption (right click -> add caption).
3.) Fill the "Caption" text area with "Test"
3.) In the Hungarian version of the program "Picture" means "Ábra". In the category drop-down change the "Ábra" to its lower case version: "ábra".
4.) In "Preview" you can see: "1. ábra: Test"
5.) Ok

Now, the following appears under the picture: " . : Test" (it's without the category). If I change back "ábra" to "Ábra", everything works as it was seen in the preview.

The issue is the same with tables, too.