Hey @margosa. The Echo Show can only have the Live View automatically pulled up from Doorbell dings but not motion events at this time. You can learn more about how to do this in our Community post here.
Hi @margosa! In addition to the Community post, our help center article contains further information about this integration, including compatibility. As it sounds like you are using compatible devices for this feature, once your Video Doorbell Pro has been discovered via Alexa and the announcement skill has been enabled, a button push to ring your Doorbell Pro should automatically populate video.
If this is not occurring, the best next thing to check is mobile device and wifi connection in order to ensure the settings applied have saved and the devices being used can communicate over wifi quickly. Feel free to let us know how this goes!
Did you rename your Echo Show at some point? Sounds like the same issue: