It cannot show items in office 365 groups which were migrated from onprem Exchange Public folder

Brass Contributor

Our another engineer migrated specific public folders in on-prem exchange to office 365 groups, then when it successfully migrated to office 365 groups, we can show items on office 365 groups in the outlook client and owa, but when we see items in mobile outlook (ex, Both Android and iOS) , it is hard to see items even if there are items, anyone know why it happens, and do you have any solution in that situation?


Customer environment is Exchange 2016 Hybrid structure they are using.

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