Excess quantity error

Hi,

There is a situation, on P4617 pick confirmation screen I am seeing 3 records for an item in 3448 red error where 2 records are at status 391 - suggestion cancelled and 1 record is at 300 status but still in red 3448 error, and system not allowing me to cancel or confirm this suggestion(for status-300) and keeps showing an error -"excess quantity". The inventory is not available at this moment. Also, I am seeing that there is no partial suggestion confirmed on P4617 but still the pick request is at status 250- request in confirmation however the  sales order line is not split.