I was programming my 436HP yesterday and tried to paste a bunch of talkgroups from one P25 system to another. Every time I did, it gave me an error saying the destination list had too few spaces, despite having made sure that there were enough spaces to accommodate the number of talkgroups that needed to be pasted. I discovered that the only way that the copy/paste function would work is if I did it one TGID at a time. I was able to successfully paste a large number of talkgroups before, but now it won't work. What's going on here?