This is also effecting my Android version. 

I've been without access to my purchases since November, and I'm getting pretty annoyed. I've not been able to get in touch with anyone, and my posts on Feedback about it get deleted. 

I've bought almost all the mash ups, plus tons of other stuff. I've spent hundreds of dollars on this game across four different platforms, and to be ignored like this is really frustrating, and you're losing long term fans of the game like me and my children. I have no access to my purchases on Switch or Android, instead, several texture packs show as purchased that I have not purchased. These packs still show in my cache, though they're locked, and on Android, the worlds I've created with them show them under the resource packs, but again they appear to be locked. 

I am getting really, really frustrated about this.