Hi @Rachel Coles , I suggest troubleshooting this first by using this article. Please ignore the sections not pertinent to conditional access.
The most likely solution by looking at this is editing the API permissions like in the article. Make sure that bingmaps has access, specifically "Read.All"
If this answer helped you please mark it as "Verified" so other users may reference it. Please let me know if you have any questions.
Best,
James