Unable to Create Warehouse Task in PRDI , HU is Blocked

Hi EWM Expert's,

We have 4 line items in IDO and for one line item Good’s Receipt and Warehouse

Activity done , remaining 3 items good's receipt not done.

The HU is partially goods receipt and the HU is blocked when attempting

to create the WT's for the three remaining articles:

we are able to pack the three line items and when we try to create a warehouse task , we are getting error as HU blocked.

I dont find any HU block in the HU table.

Please Advice

thanks

Vy