pipenv not returning environment following reload

I have one project set with pipenv as the environment manager. I have selected a pipenv environment and it is going great- the environment is selected in the project UI and being used in all execution scenarios. But then when I reload the entire window, the project manager view reports that "pipenv didn't not return an environment" or something like this. The setting is correct (still points to pipenv) but somehow the env we set prior to reload is not being loaded again.