How do I prevent TVHeadend from modifying my scheduled recordings? (opens in new tab)

So I scheduled some recordings and I changed the times manually to the exact times I wanted them to start / stop\. Next day I look and some of the recordings have their initial / EPG times again\. I'd like my recordings to stay untouched, is there anything I need to do? I am using a recording profile where \"Use EPG running state\" is set to false\.