Latest version, 1.10.3 on an XP desktop, plugged into a mirrored port on the main switch. Lots of space on the drive, Everyone has Full permissions on folder.
When I set it to capture multiple files, as you can see in the screenshot, it captures one and just stops.
I've tried it with both size and time, both stop after one capture.
I don't see anything in Preferences that's relevant. Any ideas?