Time:
Frequency: 100%
World name: Ultros
Character name: Claymore Aliapoh
Retainer name:
NPC name: all
Monster name: all
Class/Level: All
Party or solo: any
In-game time: any
Area and coordinates: All
Housing: any
Steps:
1. When using a controller(on pc or ps4), target an enemy or an NPC
2. Lock onto that enemy/NPC using the left thumb stick
3. Hold a trigger button (can be left trigger or right trigger) and then press the left thumb stick once more to cancel lock on. Lock on will not cancel.
4. You can test this the opposite way by holding one of the trigger buttons and attempting to lock onto something with the left thumb stick.

The issue is present on ps4 and PC using a ps4 or an xbox one controller