We are planning to make adjustments regarding the reset of hunt progress when leaving a Hunt-a-thon midway.
Currently, if you leave a Hunt-a-thon and then participate in a different Hunt-a-thon or Elder Dragon Interception at another location, the hunt progress for the abandoned Hunt-a-thon is reset. In an upcoming update, we will change this so that the progress will no longer be reset.
Note: You will not need a new Ultra Hunting Ticket if you rejoin the Hunt-a-thon you previously left.