[Bug]: Fees are being earned, yet transaction volume is not displayed.

[ChocoTanaka]

Describe the bug

Hi Uniswap team,

I'm experiencing an issue with Uniswap V4 pools on Polygon:

• Pool: xSGD/JPYC (or USDC/JPYC) 0.05% fee tier
• My position is in-range, and accrued fees (credit) are increasing slowly (e.g., 5 JPYC over 24h).
• However, 24h volume on Uniswap app, DEX Screener, and GeckoTerminal shows - (or extremely low).

Is this expected behavior due to V4 flash accounting or singleton architecture (small swaps not captured by indexers)?
Or is it a bug in the UI/indexer?

Pool address example: [0x0fdbd8955ca86fb8c4cae1d08bde8eecbd4e1614de94efccd6b8e4e2759595b9]

Thanks for any clarification!

Expected Behavior

In low TVL/low volume pools (e.g. xSGD/JPYC 0.05% or USDC/JPYC 0.05%), I observe the following:

• My position is in-range and accrued fees (credit) are slowly increasing (e.g. ~5 JPYC over 24h, all on one side due to directional swaps).
• However, 24h volume on the Uniswap app, DEX Screener, and GeckoTerminal consistently shows - (or extremely low, not reflecting the swaps that generated the fees).

This happens even when small directional arbitrage swaps are occurring (e.g. xSGD → JPYC direction, causing JPYC-biased fees).

If expected, is there a recommended way to verify actual swap activity (e.g. on-chain event logs or PoolManager queries) when UI shows volume 0?

To Reproduce

No response

Additional context

No response

[linear]

PROTO-1170