Try setting new Flex-Child-Settings for your moduleswithin the “feature while section” and set it to “DONT SHRINK” just for a quick test. then preview again and check it.
@Daniel_Schultheiss you are a magician!!! that fixed the problem, but actually I don’t understand the meaning of this, can you please explain?
Many thanks,
Naama.
Not quite sure if thats a bug or not, but you need to set the element settings for the child flex elements again when being displayed in mobile or when there is a layout change. But I dont know why