Problems controlling specific 433 MHz rc sockets

I am using these: https://www.aliexpress.com/item/1pair-2pcs-433mhz-rf-transmitter-and-receiver-kit-For-Wireless-Power-switch-socket-remote-control-LED/32311933574.html

Pretty cheap, but it is doing its job. I have other few 433MHz sockets working with this transmitter just fine, wich codes I sniffed with the receiever, and its working so far so good.

I have a RTL-SDR on hand and I have some recordings, that i was looking at via Audacity, but… I was not looking “hard enough”(?), because I did not figured out anything. If you think, you can do better, I can send you the recordings.