I found my 80m WSPR freq default in WSJT-x v1.8.0 is set to 3.5741 MHz, but should be 3.5941 MHz (i.e 20khz higher!!) for a dial freq of 3.5926 MHz. Strangely, I can spot different stations on either frequency (except myself) so I suspect not everyone realises this. It is easily corrected in the frequency settings list.
Ken G4APB