There has been a few issues sometimes with subs. When I try to make a sub I try to save but it doesn't save.

I try going back out and doing it again but it says sub has already been made but it doesn't. It then messes up and won't let me make any sub.

It has caused me to sub on a player out of position and wouldn't let me correct it.
Cost me results in the past.

Hopefully it's fixed.