OE9BKJ's blog

Today WSJT-X 1.8.0-rc2 has been released at https://sourceforge.net/projects/wsjt/

I downloaded this version (.deb file for Linux Mint) and installed it. This fixed the
"Hamlib error: Communication timed out while getting current VFO" which I had in combination with my FT-747GX.
As I found other users having the same problem with quite newer rigs, I would recommend to give WSJT-X 1.8.0-rc2 a try ...