The Instant View Editor uses a three-column layout, so you really want to use it on a desktop screen that's wide enough. Sorry for the inconvenience.

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Issue #3

UNSUPPORTED CONTENT
Pages that display unsupported content (e.g. an interactive map widget) must not generate IVs.

https://instantview.telegram.org/checklist#unsupported-content

The rules are the same for all, you need to be guided by them.
Andrew
I've already explained this: https://instantview.telegram.org/contest/mel.fm/template54/issue2/
Type of issue
IV generated for non-target page
Reported
Feb 27, 2019