[HP-PRIME kernel] asin, ASIN, aSin ???

[CompSystems]

[HOME MODE & RAD MODE]

sin(1.0+i); [ENTER] return 1.29845758142+0.634963914785*i // ok

aSin(Ans); [ENTER] return 1.0+i // ok

or

aSin(1.29845758142+0.634963914785*i );[ENTER] return 1.0+i // ok

or

ASIN(1.29845758142+0.634963914785*i );[ENTER] return 1.0+i // ok

[CAS MODE & RAD MODE]

sin(1.0+i); [ENTER] return 1.29845758142+0.634963914785*i // ok

asin(Ans); [ENTER] Error: Bad Argument Value" ???????????
// /!\ [ASIN] entry by HP-Prime keyboard

or

ASIN(Ans); [ENTER] Error: Bad Argument Value" ???????????

but

aSin( 1.29845758142+0.634963914785*i );[ENTER] return 1.0+i // ok

Edited: 2 Nov 2013, 11:28 p.m.

[Han]

Can you share what settings you used? I am unable to duplicate this behavior.