Hello @Jain Navin Kumar - Welcome to Microsoft Q&A and thanks for reaching out.
Depending on the type of resources you moved, you could indeed have side effects.
You might have missed some components that are hidden - you can unhide by clicking this box in the portal or by querying Azure Graph.
Also, Microsoft deploys additional components in their backbone that you do not have control on (like network related policies for example). The migration can fail in the back while depicting a false success on your end. You should refer to move operations - supported services first, and most probably raise a case to check that everything went fine if all services you moved are supposed to be supported.
Hope this helps. and please feel free to reach out if you have any further questions.
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