When using loadWorkbook, formatting that has been applied by a user in excel directly is being stripped.

With the attached excel file in my working directory, running the following code opens a file with cell C4 in black, unbolded text instead of the red, bold text as originally in the file. The formatting remains stripped if I save the wb object back out and then open from file explorer.

library(openxlsx)
wb = loadWorkbook("testopenxlsx.xlsx")
openXL(WB)

System information
Windows 10 Enterprise 10.0.19042
Have tested on R 4.0.3 and R 4.1.0, in both cases the issue persists
Openxlsx version 4.2.4
Office 365 version 2102
testopenxlsx.xlsx