Swift mysterious error

Question

I'm receiving mysterious error messages while debugging my swift app on my iPhone.

This message gets displayed while a performSegue after a Siesta-API-Call:

2016-12-06 11:08:36.032131 dl[20878:6372455] [Common] _BSMachError: port 9913; (os/kern) invalid capability (0x14) "Unable to insert COPY_SEND"
2016-12-06 11:08:36.032664 dl[20878:6372455] [Common] _BSMachError: port 9913; (os/kern) invalid name (0xf) "Unable to deallocate send right"

And this messages pops up after closing the app over the home button:

2016-12-06 11:08:52.609482 dl[20878:6372455] Cannot snapshot view (<UIKeyboardImpl: 0x13fe16770; frame = (0 0; 414 226); layer = <CALayer: 0x17403eda0>>) with afterScreenUpdates:NO, because the view is not in a window. Use afterScreenUpdates:YES.

The started appearing somehow. Any ideas how to fix these?

Answer 1

See last comment..

Error was caused by an "Please Wait" AlertController which was not dismissed correctly before doing a segue..