hi @Ross Hamilton this looks like the packages are failing to get installed. You can check the log to understand what is the issue.
I believe the failure is caused because of dependency missing. I would recommend checking for the dependent libraries and installing them.
You can try the below steps as well.
a) Install lib using command from notebook.
install.packages()
b) Copy installed lib to dbfs.
cp -R /local_disk/env /dbfs/path_to_r_library
c) Use init script to get installed libs in cluster lib path.
## Define contents of script
script = """
#!/bin/bash
R --vanilla <<EOF
system("cp -R /dbfs/path_to_r_library /databricks/spark/R/lib/", intern = T)
q()
EOF
"""