I have seen several postings about problems with the 9mm that uses Glock magazines where
1) The hybrid bolt is hitting the rear right side of the ejector and taking a notch out of it and damaging the front of the bolt face
2) The right side of the ejector is scraping inside the bolt tracks
3) Rough finish on the bolt rails causing it to not ride smoothly in the upper

Here are 2 posts about the issue...  
PSA item page. Review dated 6/1/2016.
Issue with pictures here in Rimfire and Pistol calibers forum

My lower came from PSA like this too.  Probably from test firing at the factory.

What is PSA's recommendation on how to correct these issues?
Has PSA made or will they make changes in the ejector design?
Are there any long term problems continuing to run a 9mm lower and hybrid bolt with these issues?

With a PSA 9mm lower and an upper with a hybrid bolt costing this much, the fit, finish and function should be better.
Some say you can rig it by either bending the ejector toward the left side or putting washers on the right side of the ejector to move it farther left away from the bolt.
These do not look like good solutions because it could move the ejector too far to the left and cause failures to eject.  

Thank you for your comments and inquiry.

Your upper and lower are covered under warranty.   If you have an issue with your ejector, just contact customer service directly and they will be happy to take care of the issue for you.

Compared to the number sold, it is a small % with issues.  The ejector is shimmed in place for proper orientation.  The lowers with issues just need to have the ejectors re-installed.  This is not a defect with the design, and we will correct the issue if you have this problem.

PSA, can y'all post some info on how you are shimming the ejectors? This would be much better than your customers having to send in a lower on an issue like this.
If the ejector needs to be replaced then it would be good to know that too so we can order a new ejector with the shims.
New Frontier Armory posted info on how to correct something similar to this with their hybrid bolt. I would hope PSA would post "how to" info too since the design is almost exactly the same.

Thanks for the inquiry.   Since we have the lifetime warranty, we prefer to do that operation in- house, as the bulk of our customers may not be as savvy as the folks here on what to do.  We get a lot of calls where people think they know how to gunsmith and then get themselves stuck, most of the time damaging the product in the process.

The ejector does not absolutely NEED to be replaced, if one does not want to replace it.  The amount of material there is substantial, and the damage minor in the scope of things.

Mine does the same.  I removed the ejector to polish it and while I was at it, also polished part of the front of the bolt.  There was no shim material in mine.  The polishing did help, but it still scrapes a bit.  Thought about using a thin washer to shim a bit like the review on your site referred to, but it works.

Was about to order one until I saw some folks having this issue. Is PSA going to correct these going forward so customers that buy this in the future won't have to deal with these issues? I'll probably hold-off until the issue on this part is fixed. It would be a hassle to have to send back to get it corrected when it should have been fixed before shipping the item out to the customers.

Just to be clear, mine runs like a raped ape.

Mine did this .Took a plastic hammer and smacked it . Took care of it so far and no problems. But don't remove the flash suppressor on the 4 in or the threads will come apart.

Mine does this too. PSA hybrid upper and lower. Bolt wouldn't even cycle at first until I soaked it with lube and forced it back and forth using the cut out in the bolt carrier.

Ejector has a nice gouge in it. This is my 3rd PSA rifle and my only problem thus far.

Having to return a gun so shortly after receiving it is less than impressive.