[BUG][M300] SDKCache thread - BAD_ACCESS - startConnectionToProduct()

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Gregoire Chalony

We've been using a Matrice 300 with a custom iPad app for months, but suddenly the SDK started crashing every time the USB was connected to the remote.
The error is weird : it happens in a different thread (named SDKCache) because of a EXC_BAD_ACCESS (code=1, adress=0x0), so I'm guessing it's a NullPointerException ?
This bug happens right after the registration (calling DJISDKManager.startConnectionToProduct()).

The Sample App has the same crash, so it's likely not our code. Moreover, the app doesn't crash with a Mavic 2 Pro.
I factory reset the Smart RC and removed the logs on the aircraft, without any change.
I also tried a different iPad / cable / RC.

Any help would be greatly appreciated, this is preventing us from using the M300 at all.

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3 comments

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  • DJI Developer Support
    Have you tried restart the aircraft? Is your RC and aircraft firmware the latest?
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  • Gregoire Chalony

    Yes and yes, v04.01.0101 (both remote and aircraft)

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  • DJI Developer Support
    It seems like missing a database. Will the SDK successfully register without connecting to RC? Just only on the iPad?
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