Render To Sample Jumps To Next Pattern

OK, this is a weird one. If a Send track has an effect in it, any Render To Sample that includes the last line of a pattern will jump to the next pattern upon completion. Annoyingly, it also truncates the selection if the next pattern is shorter.

Edit - Just tested it again and it doesn’t happen 100% of the time. It’s more like 75%, so no idea what the hell is going on with this.