Lopensky

Yup, now it finally works! Thank you for the help, you saved me really a lot of time! ❤️❤️❤️❤️

EDIT Sooooo THAT is the problem. uint is 4 byte and not 1.... THANK YOU. I'll try this right now!

Really sorry man, i was taling about the trackLength field, but copied the wrong one. Is this a 2 bytes data? Cause i have some problems reading the data. About the calculation i have this: 20 bytes Header + 21 bytes (other data in Session Packet) + 21 * 5 = 105 bytes (marshal zones) = 146 bytes I'm quite sure thre is something i'm missing.. but can't sort it out.

Con someone please explain me how this field works? Reading this field as stated just wreaks the sequence, wrecking out all next read data. I made a try with a field size of 4bytes (float) and this ust made all next data came out corrrectly, but still have a wrong read value in this field. I noticed also that the session packet is reported with a size of size: 149 bytes , but looking at the documentation you provided i find it out of 146 bytes. Can someone tell me what is wrong in the struct or in my tests? Thank you..

Can someone please make a quick sum up of the main differences between F1 2018/2019 UDP packets? As i can see there should be a change in some fields (car tyre compounds, exhaust damage, yourTelemetry) and in the maximum size of the packet (from 1341 to 1347 if i'm not wrong). Something else big to add something usefull? Did i forgot some field who has changed since last year structure?