Hi @Stephen
Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your question is not in our support scope.The following suggestion is just for your reference
Based on our research, this is currently a known issue with MS.
Missing environments may take up to 24 hours to reappear in environment lists and selectors.
As a workaround, affected environments can be accessed directly if the environment Id or URL is known.
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