It does! Now, it's blatantly obvious that probablilities in this game are vastly different than what they are claimed to be - take it with a grain of salt - but now as of late there are a whole slew of technical issues that are making things even worse. 

Game crashes - I have had several, and with a very capable sixth generation ipad uncluttered and unencumbered by junk and graphical settings set to low it isn't my hardware.  This is more than just a nuisance, as waiting an hour for energy and having it all just wasted when the game crashes mid battle is a huge issue. More so if you are trying to get some potions before the daily reset. 

Interface issues. I have had several instances of the incorrect ability being used, even when another is selected. This can easily cost you the arena battle, or dungeon run. I have reported it, more than once and still it persists. Another issue is that you can no longer select Ninja to revive on touch screen devices - although other champions are unaffected by this glitch. I have found quickly tapping auto then tapping it off again is an ad-hoc workaround, but you have to be deft, and if more than one champion is down who gets revived is up to the AI, and it isn't exactly known for making the best choices for the player. <ahem> I also reported this and aside from hearing back that 'Oh, that's a known issue' absolutely nothing has been done, and it still persists.  (as of shortly before this writing)

Game mechanic issues. Healing is not working as it should. Leech/Bloodthirst consistently fails to heal player champions as much as it should - and the 'crit cam' conveniently pans to distract and obfuscate the player's view - try recording and slowing things down for yourself. Damage reflect is not performing as it should either. The camera will pan and when it returns to normal view you see a dead champion and a team of enemy champions with nary a scratch on them. Combined with bloodthirst gear and leech debuffs on the enemy team and the damage taken is more than the damage dealt X the reflect multiplier. It also obscures many other things too - I suggest looking into it yourself.  All this reported as well and no resolution.

Item upgrades. This is so laggy and glitchy it is laughable - and seems only to get worse. If it is just x% chance, or even pre-determined as it was in the past this should be a non-issue.  This hiccup is caused by calculations being (sloppily) made that the player is unaware of, and they are dynamic, and far more complex than a simple dice throw. 

Those of us that continue to play in spite of the dubious way in which 'random' things play out do so at our own discretion, but these technical issues are making things maddeningly frustrating.  With no compensation for the lost hours when the game crashes during a dungeon, or for the lost arena battles and ranking it makes it even more so.  Reporting things and only hearing back a message akin to 'yeah, we know.' isn't much comfort - especially when the issues still persist. 

C'mon guys. Big update around the corner and simple little things like this aren't even being fixed? It doesn't inspire much confidence.  It inspires even less of an incentive to report issues, including any effort to get screenshots and upload them. It also gives way less of an incentive for people to spend.  The players expect (and deserve) more.