https://bugs.winehq.org/show_bug.cgi?id=57157
--- Comment #4 from Eric Pouech eric.pouech@gmail.com --- (In reply to Joe Breuer from comment #3)
exactly the same... "syntax error", focus in 'info process' does not change
you may to detach from current debugged process before attaching to a new one
Wine-dbg> detach Wine-dbg> attach 0x... (or start winedbg without arguments)
multiple process support in winedbg still requires some love. you can use two separate instances of winedbg if you really need to debug the processes in //.