A small patch to fix an issue where players could get stuck in the battle menu for campaign missions involving limited unit counts if the player currently had no units apart from their flagship and flagship modules.
Empyrean Frontier update for January 21, 2019
Patch 1/20/19
View all patches · Build 3486119 · Last edited March 15, 2019 – 18:08:49 UTC by 
Wendy
Patchnotes via 
Steam Community