Problem with an easy formula VLOOKUP doesnt match

Hello Excel friends
I'm tring to fix a bug with excel
This is just small sample and VLOOKUP seems not to find a Value
and the problem is only with the string (ir) beacuse look differet from the other (ir)

	A	B	C	D	E	F	G	H	I	J
1	Table			Dropdown	Result				for data validation
2	ir	25%		ir	#N/D				ir
3	ab	33%							ab
4	ff	44%							ff
5	gg	62%							gg

=VLOOKUP(D2;A2:B5;2;0)

Thank You for your help