Hi, I was just reading up on using FP and I have read that as of March they are enforcing the one-hour return window. If you come back after your time slot, you will be turned away.
Currently, the DLR is not enforcing fastpass return times, that could change
at some point in the future, but nobody really knows for sure at this time.
WDW started enforcing fastpass return times in march.
They began enforcing at WDW, not DL. You may find an occasional CM at DL that enforces the FP return time, but for the most part, you may return anytime that day after your FP return time. This may all change when CL opens up though...
i dont know if its true or not but theres been rumors saying when cars land opens all of dl will be enforcing them not sure true or not but letting you know