Packet loss on the lora server when catched by gateway

I was walking with my LoRa sensor in order to test my lora network’s performance.

Despite the fact that my gateway was catching some packets at a distance of 400-500 m,the lora server didn’t receive any payloads.I checked that from the “last seen” field of the UI and the loggs of my gateway.

I use activation by personization for my node at the lora app server and it transmits a packet every one minute.

May the motion influenced them or something else may be happened?
Any ideas?