Same problem here. Smaller lists eventually load but with bigger lists it is completely hit or miss for no apparent reason.
As OneEighth says above , this is extremely frustrating when you want a quick download before heading out on a mission !! It appears to be an android issue regardless of which device. I have had this problem on both Motorola e5 and a Moto e6.
Have Groundspeak made any comment on this issue, and particularly have they got a resolution?