I have two shows set up to DVR.Both of them start the recording but only record 30 sec and then stop

I have checked the space on my hard drive and have multiple TB available. Please let me know if this is a setting issue?

its a known issue that has been around since 1.7 follow here for updates https://forums.plex.tv/discussion/283156/status-of-100-complete-recording-bug/p1