I have a number of TTN applications where uplinks do NOT appear on the TTN web console. Nothing appears in application / data or application / devices / device / data. I know the uplinks are all working correctly because MQTT publishes the uplinks correctly - it’s just a no-show bug on the TTN web console.
If I change something trivial in the TTN web console application configuration, save, and then change it back and then save again then, sometimes, the uplinks all start to appear on the web console.
It may be that @luckystar13 has been experiencing the same situation.
I use mosquitto_sub and MQTT for commissioning / testing.