You may attempt to login to the RCE and see an image like this on a gray screen.
In most cases, this is caused by a line added to the user's .bashrc file in their home directory on the RCE.
SSH to the RCE and check your .bashrc file in your home directory. You may see a line like this:
# added by Anaconda3 installer
export PATH="/nfs/home/E/elawrence/anaconda3/bin:$PATH"
Either remove these lines or comment out the "export" line, then save the file.
Users can already use Anaconda Navigator or Shell from the RCE by going to Applications->Programming.