If you are unsure if you are using the Beta versions (of both iOS and Android) … then you are NOT using the Beta version 
Click on the link above to see the process for the iOS. And here for the Android - Android Open Beta. Version 2.27.0 (Image widget)
I have found with these new widgets, and ones in beta, it is necessary to have everything running the latest versions of everything (and all phone/tablet types the same versions as each other - E.g NOT one iOS phone beta and one not, etc)… else, yes, strange changes can occur.