Why am I not getting SLP in Arena?

I'm curious, why haven't I been receiving SLP in Arena? I've been actively participating in battles and meeting the necessary requirements, but I haven't seen any SLP rewards come through. Is there something I'm missing or overlooking? Could it be a technical issue or a change in the game's mechanics? I'd appreciate any clarification or insight you can provide to help me understand why I'm not receiving SLP in Arena.