Got a similar issue in a tournament.
Summary: Black screen in tournament (HUD still visible)
How to Reproduce: Unsure. Happened in a generic tournament fight
Screenshot:
Version: 1.2.0.226271
Installed community-made modifications:
Better Time
Community Patch
Dismemberment
Frugal Cavalry
MBFastDialogue
Mixed Gender Troops
Smithing Hide Unknown
Xorberax's Cut Through Everyone
BleinzUnlimitedWanderers
Better Lords - 1.1.0 ALL NPCS - Detailed Character Creation
Computer Specs:
OS: Win 10 Home 64 bit
GPU: GTX 1060 (6 GB)
CPU: i7-7700HQ 2,80GHz (8 CPUs)
RAM: 16 GB
Motherboard: MSI
Storage Device (HDD/SSD): 512 GB SSD