Hi cmn,
I am sorry to hear that you and your team has experienced varied and unexpected behavior with the IOS and Android applications. I am not the best contact for issues with the mobile product since that is not my feature area. I have forwarded your issues to the mobile team so far and I know that they are working very hard right now to deliver fixes but I am not an expert in that area of the product portfolio.
I would suggest you file a support ticket(s) with PowerBi Support (https://powerbi.microsoft.com/en-us/support/) and they will put you in contact with someone from that feature area that can assist you.
Thank you for your patience,
Bashir