Game doesn't register me pressing on permanents when trying to select blockers but does register me selecting the other areas of the game screen. Playing on mobile app and several times today I have lost games in events I have had to use paid for currency to enter due to this error, it would allow me to select to skip blockers and would allow me to play spells from my hand so I am sure the display was registering my contact, it just seemed to freeze out any attempt to assign blockers. Once the first blocker was selected I could not select who it would block, then any other attempt to respect a different blocker or do anything with my creature permanents was met with zero response at this stage. Very annoyed as several thousand gems have essentially now been wasted due to loses I shouldn't of had