Hello there!
I’ve just noticed that in current rc branch ping window in WinBox doesn’t work and is returning ERROR: no address
Obviously in terminal command works just fine
screen is from rc5, but on rc11 of CHR behaviour is same
I can confirm this on 6.37.rc11
Interrestingly, the same happens in 6.34.6 (popup ip address expected).
LE: On 6.34.6 it somehow repaired itself after winbox restart…
It was solved in 6.37.rc12
yup, solved in rc12
whoever there is no change log about this 
This is line from 6.37rc12 changelog:
*) winbox - fixed ping tool (introduced in 6.37rc1);