In 1.5.5 beta, your companions die after the loot and prisoner menus of a battle. This creates an issue where you can equip a companion with new items you receive from the battle, only to find out they died after you close the loot menu.
Computer Specs:
OS: Windows 10 64-bit
GPU: 4095MB NVIDIA GeForce GTX 1080
CPU: Intel Core i5 @ 3.70GHz
RAM: 32.0GB Dual-Channel @ 1066MHz
Motherboard: Micro-Star International Co. Ltd. Z390-A PRO (MS-7B9 (U3E1)
Storage Device (HDD/SSD): 465GB Samsung SSD 850 EVO 500GB (SSD),
1863GB TOSHIBA DT01ACA100 (SATA)
Computer Specs:
OS: Windows 10 64-bit
GPU: 4095MB NVIDIA GeForce GTX 1080
CPU: Intel Core i5 @ 3.70GHz
RAM: 32.0GB Dual-Channel @ 1066MHz
Motherboard: Micro-Star International Co. Ltd. Z390-A PRO (MS-7B9 (U3E1)
Storage Device (HDD/SSD): 465GB Samsung SSD 850 EVO 500GB (SSD),
1863GB TOSHIBA DT01ACA100 (SATA)