A group with swords attacks Carter, who handles them easily. Midway through the fight, their swords inexplicably disappear before they start a second round unarmed, apparently hoping for a better outcome without any weapons.
In the sequence of test fights required to see the Abbot, Chan's shirt disappears and reappears a couple of times without explanation. Same for the oil on his body for the first round that mysteriously evaporated off while walking to the next challenge.
The sequence of test fights required of Chan against groups of monks, mostly wielding weapons, at the temple makes Shaolin's most devoted acolytes look like assholes, and makes their kung fu unusually lame against the lone unarmed supplicant.