Rest bar should recover, others will have some chages as well during Rest time, that is the only "animation".. Out of some interruptions (RMP/both during weekend) you just get the equivalent Rest related to the time you will choose..
Unless you modified something in the HTML or some variables with console, that shouldn't happens..
So can't be considered a bug of the game, whenever you still think you didn't do nothing report with a save file on Discord..
You can try otherwise the option "Repair a Save", dunno if will be able to fix those modified variables, but it worth trying..