Some old games have problems with music setting on iOS 10

I noticed that some old AppStore games, released back in 2010-2015 years, have some problems with music playing on iOS 10 at least. I think, it's usually 32bit games (some games supports 64bit). It happens on iOS 10 (tested on iPad 4), but everything is okay on iOS 8 and 15, for example. The problem is game runs like all music effects is turned off, but settings in-game doesn't say it. Sound effects working okay, the problems with music usually. I experienced such problems with several old games, like "Where's My Mickey?" (Disney Mobile Games) and "Supermarket Mania HD" (G5 Games). I don't have any idea how to fix it, games are playable, but without music it's so strange. I'm not a programmer or reverse engineer. It means that I just should deal with it, and that's all? Without digging in executable file of the game it won't work anyway? I'm not the developer of app, I just have old iPad with Jailbreak, so I can dig in game files. The games are so old that already deleted from AppStore, developers stopped any support and I can't contact them in any way. Thanks for advices!