Hello. I had the same problem in October with the downgrade of licenses from 7 to 6 for a customer. I had to try several times, at different times and days. But finally it worked. VMware was experiencing a delay in license generation including license upgrade and downgrade services, due to the high demand for licenses. You can go ahead and download and install the version you need and you will automatically have a demo license activated for 60 days.
Enrique Espinel Senior Technical Support IBM, Lenovo, Veeam Backup and VMware vSphere. VSP-SV, VTSP-SV, VTSP-HCI, VTSP Please mark my comment as Correct Answer or assign Kudos if my answer was helpful to you, Thank you. Пожалуйста, отметьте мой комментарий как Правильный ответ или поставьте Кудо, если мой ответ был вам полезен, Спасибо.