Hello @ODL_User 954590 ,
Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that when trying to create Azure Bastion from Azure portal, you are not able to select a region as there are no available options in the region tab.
This is a known issue, and our Product Team is already working on rolling out the fix.
The approximate ETA for this fix rollout is around 2-3 weeks.
For now, the work around is to deploy Bastion using the Preview Azure poral or deploy it from the VNet/VM blade in the regular Azure portal.
Preview Azure portal link: https://preview.portal.azure.com/
Regular Azure portal link: https://portal.azure.com/
Refer the below docs to deploy Bastion from the Vnet/VM blade using the regular Azure portal:
Bastion with default settings - https://learn.microsoft.com/en-us/azure/bastion/quickstart-host-portal#createvmset
Bastion with manual settings - https://learn.microsoft.com/en-us/azure/bastion/tutorial-create-host-portal#createhost
Kindly let us know if the above helps or you need further assistance on this issue.
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