Issue Description
When we try to drag and drop elements (form, rectangle, etc) into a free-form landing page, nothing happens.
Issue Resolution
If the free-form template is not mobile compatible, you may experience this issue.
Please make the template mobile compatible to fix it.
Refer this article to make the existing free-form template mobile compatible:
Link - https://docs.marketo.com/display/DOCS/Make+an+Existing+Free-form+Landing+Page+Template+Mobile+Compat...
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