Deathbox didn't spawn after finisher'd next to wall

Product: Apex Legends
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number GTX Nvidia 970
Enter RAM memory size in GB 16gb
What is your gamertag/PSN ID/EA Account name? DaMofoPopo
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible.
Which Legend were you playing (if applicable)? Lifeline
Which Legends were your squad mates using (if applicable)?
Where did the issue occur? In a match
Which part of the map or menu were you in? If you don't remember the exact name, please describe the area or what you were trying to do in the menu. Artillary
What were you doing when the issue occurred? E.g. respawning a squad mate at a beacon, using an ability, a squad mate left the game. dead but respawnable
Did your squad mates also experience the issue? Yes
How many matches had you played in a row before the issue occurred? 3 or 4
When did this happen? (dd.mm.yy hh:mm) 03/06/2019 @1630 hours
How often does the bug occur? Rarely (0% - 9%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? I went down in a corner and was executed by an enemy. My deathbox then glitched into the wall into a place that my teamates could not pick up my banner
What should be happening instead? My death box should not glitch into walls
Steps: How can we find the bug ourselves? I have no idea.

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I went down in a corner and a finisher was used on me. When I was completely dead, my deathbox glitched into the wall and into a position that my teamates could not pick up my banner.