Update to Felgo 2.14.2 broke MapBoxGL

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December 17, 2017 at 17:56 #17895
Julian
Hi,

after upgrading to Felgo 2.14.2 I now get immediately:
```
harbour-berlin-vegan(7019,0x16f66b000) malloc: *** error for object 0x1c4a1ce98: pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
program received signal 6, thread:327493;00:0000000000000000;01:0000000000000000;02:0000000000000000;03:0000000000000000;04:0000000000000000;05:0000000000000000;06:0100000000000000;07:6e08000000000000;08:0000000800000000;09:0000000400000000;0a:2c96998301000000;0b:0a00000000000000;0c:0000000000000000;0d:3700000000000000;0e:1300000000000000;0f:0020000000000000;10:4801000000000000;11:6707000000000000;12:0000000000000000;13:0600000000000000;14:00b0666f01000000;15:0000000000000000;16:03b2000000000000;17:e0b0666f01000000;18:00004d0301000000;19:0400000000000000;1a:a8c9071a01000000;1b:90d0071a01000000;1c:a8a8666f01000000;1d:70a7666f01000000;1e:4453998301000000;1f:40a7666f01000000;20:4813888301000000;21:00000000;metype:5;mecount:2;medata:10003;medata:6;memory:0x16f66a770=b0a7666f01000000b80f7f8301000000;memory:0x16f66a7b0=10a8666f01000000188d8b8301000000;
```
on iOS and the app crashes. I am currently downloading Qt 5.9.3 to see if it is a Qt bug or not. Did you experience something similar?

Best regards,

Julian
December 18, 2017 at 10:57 #17899

Günther
Felgo Team

Hi Julian,

we did not experience this crash yet!

Please let us know if this happens for you with Qt 5.9.3.
It would also be interesting if this crash occurs with every Felgo project, or if it’s related to a certain feature you use in your app?

Best,
Günther

January 10, 2018 at 01:02 #18050

Julian

Hello Günther,

the bug is confirmed for Qt 5.9.3 and 5.10 and there is already a patch: https://bugreports.qt.io/browse/QTBUG-65262

Happens with every build on iOS using MapBoxGL (not pure MapBox), even the mapviewer example.

Best regards,

Julian

January 10, 2018 at 08:51 #18053

Günther
Felgo Team

Hi Julian,

thanks for the update about the issue!

As soon as we switch to a Qt version that includes this fix, it will also be available for your Felgo project.
The next Felgo update will be for Qt 5.10, which is still affected by this bug, so the fix will be part of the following update then.

Best,
Günther