After Rstudio loads the Mfuzz package, the console area shows that the code keeps running and cannot continue with subsequent code.

library(BiocGenerics)
library(Biobase)
library(e1071)
library(Mfuzz)

R version 4.3.1 (2023-06-16) -- "Beagle Scouts"
Platform: x86_64-apple-darwin20 (64-bit)