Magix Video Pro X and Vegas Pro 19 are two completely different programs! I'm not aware of any information anywhere that suggests otherwise but I realise you may have misunderstood that this is the case.
If you bought Video Pro X quite recently (i.e. within the last few days) I would recommend emailing infoservice@magix.net to ask for a refund of your purchase in order to enable you to purchase Vegas Pro 19 if that is the software you are used to using and really want to continue with.