Just last night we ran into an issue with one of our players, who is using the Halfling Luck ability. All rolls that use a d20 are being rolled as 1d201, giving us some amazing results, like a 93 Perception check. I got some pointers from the Roll20 subreddit last night and this morning, and went to check it out. Nothing seemed out of order in the character's attributes (Halfling Luck still had the entry ro<1 ). I turned off the Halfling Luck checkbox, and rolls were fine. Closing Roll20, I rejoined the game, turned Halfling Luck back on again, and checked the rolls - this time, they were rolling properly. This is some kind of odd glitch, so I thought I would bring in to the attention of the community here. If anybody has any insight into why this may have happened in the first place, please let me know. Thanks! Rob.