Misplaced tooltip text

[erstearns]

I am having an issue with the position of the download size titles. They render in the correct location when I run my Shiny app locally, however when I publish the app on a remote server, the titles then render in a different location as depicted in the image below.

Here is my code for integrating easyPrint:

# ---- add legend & easy print ----
  observe({
    print("observe: add model input legend")
    leafletProxy("inputMap1") %>%
      clearControls() %>%    
      addEasyprint(options = easyprintOptions(
        title = 'Download map - select size',
        position = 'bottomleft',
        hideControlContainer = FALSE,
        exportOnly = TRUE,
        filename = paste0(paste(input$country, collapse = "_"), "_", input$sel_inputs[1]),
        tileLayer = "basemap",
        tileWait = 5000,
        defaultSizeTitles = list(
          "CurrentSize" = "Current map extent",
          "A4Landscape" = "A4 (Landscape) extent with w:1045, h:715",
          "A4Portrait" = "A4  (Portrait) extent with w:715, h:1045"
        ),
        # sizeModes = c("A4Portrait","A4Landscape"),
        sizeModes = list("CurrentSize" = "CurrentSize",
                         "A4Landscape" = "A4Landscape",
                         "A4Portrait" = "A4Portrait"
        ),
        customWindowTitle = "Input Map 1",
        customSpinnerClass = "shiny-spinner-placeholder",
        spinnerBgColor = "#b48484"))  %>%
      addLegend(pal = with(modinput1(), pal), 
                values = with(modinput1(), pal(values)),
                title = modinput1()$label,
                position = "bottomright",
                opacity = 0.99, #,
                 labFormat = function(type, cuts, p) {
                   n = length(cuts)
                   paste0(comma(round(cuts[-n], 2)), " – ", comma(round(cuts[-1], 2)))
                 }
      )
    
  })

Any help resolving this issue is much appreciated!