Me too...The timer on my Krustyburger hideout has reset at least twice since it became a hideout.
I think that I may have found something that works, at least for me twice today.
Today, I have been keeping a close watch on it to try and figure out what is going on. I have been checking the timer everytime I do anything that might possibly cause the timer to reset.
The first thing I do after collecting from all 4 hideouts and the saloon is exit and fully close the game. Then I restart the game and immediately check Krustyburger. The timer was still in sync with the others. Next, I visited neighbors tapping outlaws and dropping prospectors. Then returned to my town, checked KB, timer still ok. Everytime I send characters to recycle, I checked KB. Everytime I collect from the Kwik-e-Mart headquarters which is where I send everyone not doing anything useful, I checked KB. I have probably checked the timer on the KB hideout 20-30 times today. So far, the timer hasn't reset.
So, after collecting from all 4 hideouts and the saloon, exit your game, fully close the app and restart. This has been working for me so far. It's worth a try.
I hope this makes sense.