We are trying out the new nRF5x SDK v12 and it looks like the previously working ble_app_hids_mouse example is broken now.
It compiles successfully, but as soon as we try to pair a new device with it, pm_evt_handler() is called with PM_EVT_ERROR_UNEXPECTED and the pairing fails.
I can confirm that the same example from the SDK v11 works properly with the same hardware. We are using the PCA10028 board (nRF51-DK).
Is there any known workaround for this?