Time for a new Schwalbe ZX
Had this happen a few miles from home. I love the Schwalbe’s, but they definitely do not last super long. I deal with it for the ride, but if you ride these it’s the one drawback.
UPDATE: I took this tire to Gary at Bodacious Bikes in Easton, MD where I purchased the tires and he called Schwalbe and apparently they are seeing this issue in 2-4 of this model tire out of a 1000. They are good about things and are covering it under warranty. If it happens to you before you say some four letter words and jam it in the trash, save it and take it back to your bike shop, they should cover it.