Bright purple terrain flickering in lobby and match

Product: Apex Legends
Platform:Steam-PC
Please specify your platform model. PC
AMD or Nvidia Model Number Radeon RX 580 Series
Enter RAM memory size in GB 32
What is your gamertag/PSN ID/EA Account name? Batblade
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible. N/A
Are you using any software with an overlay? Yes
If yes, can you list them here? Radeon Software
If you disable this software, does that have any effect? No
Which Legend were you playing (if applicable)? Wraith and Gibraltar
Which Legends were your squad mates using (if applicable)? N/A
Where did the issue occur? In the lobby (waiting area before the 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. It was a place on Olympus, the entire area around me was covered in a flickering purple light, like missing textures. It happens when I move my cursor in the menu as well.
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. Walking around and aiming normally.
Did your squad mates also experience the issue? I don't know
How many matches had you played in a row before the issue occurred? It happened both matches I played.
When did this happen? (dd.mm.yy hh:mm) 04.05.21.04.01
How often does the bug occur? Every time (100%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? I can't see anything and it led to me dying both times I played because I could not see my enemy,
What should be happening instead? Nothing should be happening, the flickering should not be occuring.
Steps: How can we find the bug ourselves? Move your cursor on the menu screen or play a match.

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I guess it's because of the new Season 9 update, but there's a majorly game impacting bright purple flickering happening in the lobby and when I'm in a match on the ground, just walking around and aiming. So impacting, that I was killed twice because the purple flickering was like a smokescreen.