crash just after close a channel

#1
hi, everytime you make a new version of the program, this one continue to have stupid bugs.
when you stop to make disasters ???
this new:
sometimes i need to close 1 channel because i have others opened and if this one
don't record, i close it.
when i press it for close the channel, the program crash just after to do the action.
why ???
with this new crash, i lose many records, because the channels that was under record, have finish to work.

another one:
why new you have put on the scheduler the AM and PM ???
this make people nervous, because when i have add a scheduler, i must change also the AM, PM.

if i write: 06.00 i mean 6 of morning, and you don't have to add AM, PM, for make losing time to the people.
if i write: 18.00 i mean 6 of afternoon, ok ???

i hope you can finish to make disasters.
thank.