This is not always reproducible, but it usually happens in the trending article in the zh.wiki.
If we keep refreshing the page, the issue will be solved.
org.wikipedia.dataclient.okhttp.HttpStatusException: Code: 429, URL: https://zh.wikipedia.org/api/rest_v1/page/mobile-html/%E9%94%A6%E7%BB%A3%E5%8D%97%E6%AD%8C
org.wikipedia.dataclient.okhttp.HttpStatusException: Code: 429, URL: https://zh.wikipedia.org/api/rest_v1/page/summary/%E6%9D%8E%E7%82%B3%E6%86%B2