Best practices to cope with crashes that cannot be reproduced?

Hello developers and testers,

During last year I have had hard time fixing problems in an android app, as these problems happened only for beta testers on specific devices and could not be reproduced on other devices.
Going to devices farms, I found same devices but problems were not happening there ! Probably difference in firmware versions ...
The app was heavily depending on underlying hardware (sensors) and worked with 3rd party SDKs, which was the most affecting factor I think.
I was wondering:
- Does same situation happens to you ? How often ?
- how do you cope with this situation ?
- what can be improved in the development/testing process from your professional point of view ?

Thanks!
:confused:

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