You have a really interesting setup, you have both CUDA (NVidia) and QuickSync (Intel) hardware acceleration. However it looks like your intel drivers are buggy and causing handbrake to hang when it tries to use hardware acceleration.
2018-02-06T07:51:46 MCEBuddy.AppWrapper.Handbrake → [07:51:46] qsv_enc_init: using ‘hardware (2)’ implementation, API: 1.25
2018-02-06T07:51:47 MCEBuddy.AppWrapper.Handbrake → Error code -17, hb_qsv_wait_on_sync 602
2018-02-06T07:51:47 MCEBuddy.AppWrapper.Handbrake → ERROR: encqsv: MFXVideoENCODE_EncodeFrameAsync failed (-17)
So MCEBuddy switches back to software encoding using handbrake without trying to use the nvidia hardware acceleration via ffmpeg (we’ll add that optimization in future to try different hardware encoder before switch to software, primarily because it’s very uncommon to have systems with both types of hardware vendors in them).
The solution as @Will_Tschumy pointed out is to change the order in your profile to ffmpeg and that should make it use the NVidia card first for hardware encoding and if that are no issues with the driver it should be significantly faster.
On a side note it’s possible that your Intel card isn’t properly initialized and that your Nvidia card is your primary monitor/display card which is probably why handbrake can’t get it to initialize. If you want to Intel hardware encoding instead of Nvidia then you may want to try the fake display trick to activate your intel card.