Since June I have been getting errors in XL every time I initially save a file in a session or sometimes when I click a group to expand it to see all of its models. I get popups for nearly every model that I have made some type edit to at some point, so I am getting 16 error messages in a row with the name of each model and stating that "Could not find a model or group names [model name]". The names of the models listed in the error message are the previous name of the model before I changed them to a new name. The old names no longer show up anywhere in the Layout or Sequencer tabs so I have no problem getting the names changed, it is that XL is still keeping track of the old model names somewhere.