Extremely rare uncaught null reference exception when copying queues using templates can cause copying process to break

after using the copy / paste function once with a check in desk with queue the queue is gone for the next pastes.

====================
COLLECTED HARDWARE DATA
====================

Application version: Beta 5.0-2

Device
=====

Model: MS-7885 (MSI)

Operating system: Windows 10 (10.0.0) 64bit

RAM size: 32 GB

Battery status: Charging
Battery level: -1

Processor device
============

Type: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
Core count: 12
Frequency: 3 GHz

Grahpics device
===========

Vendor: NVIDIA
Type: NVIDIA GeForce GTX 1080
Memory size: 8 GB

Screen summary
===========

Full screen: False
Resolution: 2560 x 1440 @ 59Hz