I've noticed that when using Suggested tags, that for most images at least one of the suggested labels is in Dutch instead of English.
I have Dutch configured as one if the language I speak and can provide translations for in the Commons structure data captions and on Wikidata.org. However my interface language is set to "British English" and the labels in question all have English labels for them (Dutch is not used as a fallback here).
Looks like there might be a bug here where it's mixing languages or choosing translations in the wrong order. Because Dutch and German words very often have a special meaning in English, this is rather confusing.