Thank you so much. You are so kind. I can't thank you enough for clarifying my doubt. May I ask is it ok to mention "Not claiming points for this job due to Lack of documentation" as the reason in the LOE? If you don't mind, May I ask what did you state as the reason?Oh, I'm so sorry! So, after this clarification of yours it seems that it should be ok to remove Job X, as it is not adding any points and would mean only sending more documents and etc. For OINP, I think you can go with the strategy of listing under Work History only what you're claiming points in the EE, thus job X would not go in Work History. To make everything look neat, I think it is important to state this period of work that you're not claiming any points under Other Activities and also write a brief paragraph in your LOE to explain why you inserted that in the Other Activities and not in the Work History.
I had 1 year of experience in my primary NOC with all the documents and 1,5 years in the same NOC but with a different company that would be difficult to get all the documents. I did exactly what I wrote above and got nominated without any problems or ADRs. I stated this 1,5 years in Other Activities and also wrote a brief explanation in my LOE.
Good luck with your application!
Looking forward to hearing from you.