WON’T SAVE LOCATIONS – 1Weather: Forecast and Radar Review

IOS 12.5.3, iPad Air. Why won’t the APP, save favorites, every time I save, ADD, locations, next time I turn on my iPad, all gone?. Emailed the same question weeks ago, no answer. Ready to DELETE No answer from you, tried every way to get it to hold locations, won’t hold, DELETED APP, BYE BYE ?
Review by Hut5239 on 1Weather: Forecast and Radar.