Inspection points not getting created in some instances

We have a custom program in which we are performing the below steps.

1) Create inspection lot and assign operations to it

2) Link physical sample to inspection lot

3) create inspection points (which are used in QE51N)

In some instances users have noticed when they do QE51N that the inspection point with physical sample details are not set up for one of the operations (it is the first operation always in the list) and in some instances even when there is a single operation it does not show up in QE51N.

We are using BAPI_INSPOPER_RECORDRESULTS and BAPI_TRANSACTION_COMMIT immediately to commit the inspection point to DB and we have also given a wait of 2 secs after the commit.

Has anyone experiences this random issue anytime before?