Damn shame mate. In Zwifts defence i've not had that for a very very long time i must admit. I do see the odd person drop out temporarily but it's quite rare.
Mine today was 90mins at fairly low intensity, although it didn't feel it at times as i plodded up the mountain at 2.2-2.3w/kg. Maybe i need more than just 1 day a week off...
Today was a fasting day, yes, i'm back on the 5-2 again as the weight had snuck up over the past 3 months. This time i'm actively trying a bit more than just that though, so have removed a certain amount of the bad stuff on the 5 eating days, just the Latte here, the Crisps there, replacing them with a banana or indeed nothing, along with a bit of portion control with Mrs Weeksy and less Carbs than usual for a meal.
How that will end up going, i have no idea. However, really the amount of hours/riding i'm putting it tells me i shouldn't have such a weight struggle so really need to improve my overall eating/lifestyle.