We are currently using the Classic UI and preparing to migrate to Touch UI.
During this we observed, that the height of the placeholders of our components or the drag and drop area looks incorrect. If we compare to we-retail example pages, the issues does not happen there.
Correct on We-Retail:

Wrong height in our pages:

Technical investigation showed, that the height of the placeholder is 28,75px instead of 40px in we-retail. The div height is calculated and set as inline style.
Contacts to Adobe Consulting showed, that this happens also for others. But has anyone solved the same behavior?