user unable to log into rstudio

A new user has been unable to log into rstudio and has been getting Permission Denied errors.

Their .rstudio directory in their home directory has been created with the correct permissions and their home directory has the correct permissions as well.

The logs show a - ERROR system error 13:

/var/log/messages-20211010:Oct  6 23:59:35 pdgddb323-usy4 rserver[60608]: ERROR system error 13 (Permission denied) [path=/tmp/rstudio-rsession/zbaxf10-ds/3c286bd3/3c286bd3, user-id=100444, stream-user-id=756583, request-uri=/workspaces/default_session_scope]; OCCURRED AT: virtual void rstudio::core::http::LocalStreamAsyncClient::connectAndWriteRequest() /var/lib/jenkins/workspace/IDE/pro-pipeline/v1.2-patch/src/cpp/core/include/core/http/LocalStreamAsyncClient.hpp:77; LOGGED FROM: void rstudio::server::session_proxy::{anonymous}::logIfNotConnectionTerminated(const rstudio::core::Error&, const rstudio::core::http::Request&) /var/lib/jenkins/workspace/IDE/pro-pipeline/v1.2-patch/src/cpp/server/ServerSessionProxy.cpp:406