Crossfire post process

have fire control 21.1 used it for the last couple months tried to run new part now it tells me im tring to use mach 3 its not even loaded in to my pc . every time langmure sends up dates it screws everything up

Something else must be wrong? I’ve used every update without having a single problem. Make sure you have the correct post processor installed.

i do but now its not showing in when i post 21,1 . how do i get it back

Make sure you deleted the old FireControl. Go to Langmuirs download page. Download the processor for your table. Follow the instructions on how to download it.
Sometimes Windows 10 won’t download it by itself. Use the instructions to download it for windows 7. The information on Langmuirs page are really good.