[GAMEPLAY] Lux - Autoattacks are canceled when her shield (W) changes direction

On Lux , when attempting to auto attack at around the same time her shield (W) is reaching its maximum range and changing direction, her auto attack will be canceled. The auto attack animation does not continue if canceled, no damage is dealt, but the shield is unaffected.

Cast Prismatic Barrier (W) Attempt to auto attack when the shield is reaching max range (small window) Since her auto attack animation isn't too long it doesn't happen often, however, with correct accidental timing it cancels the attack every time. This is disadvantageous when in a lane skirmish and attempting to trigger a passive effect while using shield to mitigate trade damage.

Here is a GIF of an auto canceling on a minion when the shield reaches max range: Shield Bug The GIF is old but the issue has still persisted.

In a custom game, I can recreate this on purpose if I time it correctly. I'm not sure if this interaction is intentional. I do recall another champion with a boomerang skill shot having a similar issue and was fixed but i'm not 100% certain.