I was playing through the game and thoroughly enjoying it too. I forget which episode I was on, I was on the boat looking for the transmitter, so I was a fair distance into the game, had a healthy stock of items and had helped about ten citizens. I encountered the first armoured enemy while on the boat, the kind where you have to use manual aim to defeat them. I obviously made a huge mess of killing him the first time, so I decided to have another go. I paused the game and selected 'Reset to a previous episode', something I've done a few times when screwing something up near the start of an episode (it's better than unnecessarily using retries while playing on Survival difficulty). However, because the game always highlights the first episode in the list instead of the episode you're currently on, I accidentally selected Episode 1 - Return. I didn't think that was a problem though because I could simply skip the opening cinematic and then 'Reset to a previous episode' again and choose the right one. But, thanks to the game's stupid autosave, I no longer have any episodes to choose from beyond Episode 1 - Return. So everything I had done up to the boat - all the exploring, collecting, helping, a good four hours of gameplay - has been completely wiped. I've checked the save, it's all gone, there's no backup.
THIS SERIOUSLY SUCKS AND NEEDS TO BE ADDRESSED
Yes, it's my fault that I accidentally chose the wrong chapter (even though the current episode should be highlighted when entering that menu, not the first), but a mistake like that should never have such dire consequences. This flaw in the autosave system has completely ruined the game for me and the thought of having to do everything again, despite the fact I've enjoyed every last moment so far, is a galling prospect quite frankly.