Hi All,
Probably a SharePoint question, but one that has been bugging me as I start to convert some older Classic lists to Modern and change the InfoPath edit forms to PowerApps.
I have a couple that simply do not give the option as below - I cannot see anything different about them and all the other "New Experience" bits work fine - I just cannot get to PowerApps from them (even in Form Settings, the option is not there.)
View with option missing and then all the others (which I am sure everyone has seen)


Any ideas would be greatly appreciated.