Weapon XP not being awarded on Switch 2

I am playing Apex Legends on Switch 2.
In both Ranked and Unranked matches, I sometimes do not receive XP for holding weapons, and my weapon levels do not increase.
At first, I thought this was a change in the game’s specifications, but the XP is sometimes awarded and sometimes not, even in the same game mode.
Is this a known issue or is there a specific condition for receiving weapon XP?
If this is a bug, I would appreciate an investigation and a fix.