MIRO is picking up Block Stock GR?

Dear Sir,

I am facing a new problem. I am new in MM so can't find any solution.

Scenario

1) After purchase order release we are creating GR with block stock using mvt. type 103.

2) Release the GR with mvt. type 105.

3) When creating MIRO it will select the Block stock GR instead of GR with mvt. type 105.

Why the system is picking up the block stock GR instead of Release GR.

Screen shot is attached for your kind perusal.

MIRO screen shot.

Purchase Order History Screen shot.

Thanks & regards

Koushik Goswamy