www.wysiwygwebbuilder.com

When using the filtering on a gallery the layout of the thumbnails is not what it should be, there are white spaces where
there should be thumbnails.You can see all thumnails but with unexpected white spaces bewteen.
Here is a screenshot and the wbs https://gofile.io/d/Al7g9h
I use the update of 7-9-20 64 bit trial

This is related to the way the images are layed out (using a grid).
The filter affects the 'display' attribute, so depending on the order of the images, this may leave an empty space in the row.

Demo:
https://www.wysiwygwebbuilder.com/suppo ... ilter.html

But also the all show white spaces? as you can see on my screenshot.
Is there a solution to show this without white spaces? Or maybe as a suggestion to implement this
maybe the a class?

The correct use is demonstrated here:
https://www.wysiwygwebbuilder.com/suppo ... ilter.html

Project:
https://www.wysiwygwebbuilder.com/suppo ... filter.zip

So you have to insert each same labeld thumbnail after each other and not random?

Correct, otherwise the structure of the layout will be 'scrambled'.
The only other option would be to use absolute positions but then the layout is not responsive/flexible.

and when we use a class toggle hide and show can that be implented?

when we use a class toggle hide and show can that be implented?

That is how it works.