User:恐狼博士 from the Cantonese Wikipedia reported that Chinese IMEs (Cangjie in his case) has been malfunctioning when used inside Wikitext mode. Predictive text no longer works. This malfunction started two weeks ago.

He's unsure whether he was on old or new Wikitext mode before. Was there any significant change to the 2017 Wikitext editor in the last month?

Deryck