height setting initally ignored then correct

Hi!

First of all thank you very much for MetaSlider – using it for years now 🙂

I encountered an interesting behavior with the image height. I think it arose after the last update.

I’m using FlexSlider with
width 551 (to have a “special value”) and
height 370.

On page load the images start with a height that equals the width (551) and the dots below are “far off”. But after some slides it is corrected to the height of 370.
If I click on the 7th or 8th dot it is corrected immediately …

So I think its some CSS/JS problem and not related to other plugins or the Twenty Twelve theme.

The issue can be found here: https://www.freilicht.org/
The preview works: Yes
It works with other themes: Haven’t Tried
It works when I disable all other plugins: Haven’t Tried
Meta Slider version: v3.15.3

Thank you very much for your help!