Hi @vrithner ,
If the resource is still in the original RG and does not appear in the target RG, it is possible that the move operation did not complete successfully. You can check the status of the move operation in the Azure portal. If it is still pending, it may eventually succeed, or you may need to wait for the four-hour lock period to expire.
Also check the below screenshot which says
Reference: -
Please do not forget to "Accept the answer” and “upvote it” wherever the information provided helps you, this can be beneficial to other community members.it would be greatly appreciated and helpful to others.