Excel Data Type from Power BI Semantic Model Not Resolving New Values

Hi dean_flynn,
Thank you for reaching out to the Microsoft fabric community forum. 

Since you have already opened a support ticket with Microsoft, this is the appropriate step for a deeper investigation, particularly if it involves environment specific behaviour or requires backend review. While you are working with the support team, please continue to share any updates here. If a solution has been found, it would be greatly appreciated if you could share your insights with the community. This would be helpful for other members who may encounter similar issues.

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