No Way!
Just used the recent Dev version and adjusted the freq to 868.35 and it works!
My *.evt was previous set to 868.30 & 868.50, so its clear its extremely sensitive when it comes to the correct freq. (Strangely the receiving freq of the WS80 was 868.50 when i tested it on a receiver.)
Someone needs to add a thick fat note to in the wiki/doc and example files. This made my day, thank you all!
Next is the TTGO LoRa32 to get working with 433mhz FSK.
Currently able to receive the below 868mhz sensors now. :
Fineoffset-WS80
EcoWitt-WH40
Fineoffset-WH0290
Fineoffset-WH51
Fineoffset-WH31L
Fineoffset-WH45
Fineoffset-WH32B