Conflict with Flatsome Theme

Hi Nick,
many thanks for providing this great plugin.
I have a tiny problem hopefully you can help me with.
I have a global step value of 0.1 starting at 0.5 it all works fine with all other plugins turned on and off.
However, if I turn on my theme ( Flatsome: https://themeforest.net/item/flatsome-multipurpose-responsive-woocommerce-theme/5484319 or https://flatsome.uxthemes.com/ ) I get a strange behavior.
Stepping from 0.5 to 1 works fine then it jumps to 1.2 and works fine until 1.6 and them jumps to 1.8 then works fine until 2.1 and then jumps to 2.3. With higher values from then on it works fine.
Also strange: When I decrease the values from 3 to 0.5 no values are skipped.
I also tried to disable all plugins when the theme is turned on, but still the same issue, which is why I believe it has something to do with the theme.
I can also give you the URL, but then as a private message, since it is a client’s site.