Black border on random elements

[Elfangor93]

Sometimes when I edit some blocks (for example a label) in the composer, it automatically adds a black border around the block:

I have to remove the border manually with the style manager to get rid of it...

[david-polak]

Can you describe the steps to reproduce this?

[Elfangor93]

If I find a pattern or logic of the behaviour, I will tell you. It just happens sometimes...

[Elfangor93]

I found a way to reproduce the problem on a regular basis:

1. File -> New
2. Place a column container
3. Place a Row/Column element inside the container
4. Insert a Label or Button or Chart in the left or right part of the container
5. Select the new created Element (Label,Button,Chart)
6. Click somewhere inside the Container (if you click outside the container, the black border will disappear again)

[jansilar]

I confirm the behaviour on Ubuntu/Chromium.