Need help identifying i-ELOOP issue

Hello everyone,

I'm here to seek your help. My vehicle is a 2015 Mazda3 BM. The original engine was a PE 2.0, but I recently swapped in a PY 2.5 engine—the transmission remains unchanged. After installing the engine, I flashed the ECU to “PY6S-188K2-F,” and all other functions appear to be working normally. However, I noticed that the Mazda Connect system no longer displays the charging/discharging animation, and the I-eloop capacitor level does not show any increase or decrease. The i-stop function operates correctly, and the attached screenshot shows the DC-DC module functioning normally.

Could you help me identify what might be causing this issue? Thank you very much!

My English proficiency is limited, so I apologize if I have caused any offense.

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