Why am I losing more RP than entry cost

Product: Apex Legends
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number RTX 2070
Enter RAM memory size in GB does not matter
What is your gamertag/PSN ID/EA Account name? Rifo_On_CH
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible. Rifo_On
Are you using any software with an overlay? No
Which Legend were you playing (if applicable)? Lifeline
Which Legends were your squad mates using (if applicable)? -
Where did the issue occur? Returning to the lobby after 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. RP overview
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. every ranked game
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? 0
When did this happen? (dd.mm.yy hh:mm) 26.04.2023 11:30
How often does the bug occur? Every time (100%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? For every ranked game on Plat 2 i loose -99 RP instead of -52. Even if i should win like 88 (what it sais in the game) i only win 35 RP. I somehow always end up in RP -50 difference every game. Please give my RP back :-(
What should be happening instead? Normal RP gain as it shows on top right corner ingame.
Steps: How can we find the bug ourselves? watch my game history and RP gain / loss

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i keep loosing RP for no reason. watch screenshots attached.