Full name of your device : Iphone 10XR

The version of your OS : iOS 13.3.1

Steps you performed in the game before the issue occurred: 

standard clan boss routine. I have a video if it lets me post or email it ide be happy to send it over. 

Description: 

This occurred before I got lucky enough to catch this video multiple times. This was my 4th run of the day on UNM and for some reason each run prior I had a weird feeling like I had seen the game do something weird during my first clanboss run, I think my skullcrusher just randomly died after the lag issue we are aware of and I didnt know if maybe it had a miscalculation or if I was just seeing things. Then it occured on the following run immedietly after when septimus I thought was going to die due to the 2nd aoe but his wm/lifesteal set helped him recover and redirect the single target stun elsewhere. Nearly full health, and septimus dropped in front of my eyes. Another run and then the 4th run came and I took a shot at screen recording it and happened to catch the video of 2 of my guys dropping due to the same bug. This also occured today but I didnt happen to screen record it a 2nd time.Hopefully this helps!