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Fine, we've figured out what's caused problem. It was one of frameworks that we depend on.
How we figured it out?
There is "View device logs" button in Devices and simulators window (in Xcode). And its the only place where we've found some info about crash. So the log says that it couldn't find some framework, so we researched and found that there is some strange behavior, when you build from Xcode it runs ok, but when archived framework not attached to build so it caused crash. We updated that framework and everything works fine now.