Since the last update of the talk page design, some talk page sections can no longer be expanded, seemingly whenever there is a wikilink in a section title (it doesn’t matter which section; one linked title can break the whole talk page). It does not even open the link in the title on tap, it’s just completely unresponsive. However, it only occurs on some talk pages and not on others; I have not yet found a logic in the behaviour. https://de.m.wikipedia.org/wiki/Benutzer_Diskussion:ChrisHardy for example is completely broken for me; there is a link in the second section title, but I cannot open any of the three sections.
I’m trying this on iOS (Safari); it behaves the same whether I have AMC activated or not.