The mobile web version of VisualEditor doesn't open dialogs when the user enters character sequences like [[ or {{.
If it doesn't open the dialogs, it should at least display the "You're using wikitext" warning as it used to do on desktop.
Example edit: https://it.wikipedia.org/w/index.php?diff=71871092
Reproducible in Chromium 41.0.2272.76 on https://fr.m.wikipedia.org/wiki/Pomme#/editor/0 ; It's the only browser I can test that has VE; Firefox gets the wikitext editor.
We don't do wikitext detection in mobile, but that's OK because it's not a major cause of mistakes except for missing functionality (which we need to fix by making it available).
But {{ as a character sequence is broken on mobile, which isn't OK, and that's what T95248 is about.
(Also, things working or not working in desktop Chrome is almost entirely valueless as a determinant of whether they work in actual iDevice/Android device, sadly. :-()