wordcloud encoding issues R shinyapps.io, UTF-8 not rendering properly

Question

I am having an issue where my wordcloud::wordcloud() renders properly with Chinese characters encoded in UTF-8 when I run my Shiny app locally (Windows 10 machine), but when I deploy it to shinyapps.io the wordcloud no longer renders properly.

This is the code where I make the wordcloud in my server.R:

  wordcloud_rep <- repeatable(wordcloud)

  output$wordcloud <- renderPlot({
    wordcloud_rep(word_tab()$word, word_tab()$freq,
                  min.freq = wordcloud_minfreq(),
                  max.words = wordcloud_maxwords(),
                  random.order = FALSE,
                  colors = brewer.pal(8, "Dark2"))
  })
}

However, other Chinese characters in my app deployed on shinyapps.io show up correctly, as shown here.

I tried setting options(encoding = "UTF-8") as some people do here, but it does not seem to resolve the issue.

Someone else has had a similar problem with Korean characters, described here.

Does anyone know if it has something to do with rsconnect, or maybe how the wordcloud is generated in the wordcloud package?

EDIT: I used the wordcloud2::wordcloud2() function instead and it rendered properly without me having to make any other changes.