2 Invoice lines are getting created for every service item after manual adjustment

Summary:
In Service business industry scenario we have all lines are service lines and we are using order management.

All items are Bill only service items and we update the price for each line during order submission. ( By default each item price is zero)

Before order submission we update the latest price with Price adjustment—>Type—>Price override .

Issus is for every single service item in OM there are 2 lines getting created at invoice side.
We need single line in invoice.

Note:—We are not using subscription management.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):