Codes P0087 andP0193 (Pending)?

Issue: Several weeks ago, while starting my car, it kept shutting off. I was barely able to keep it running and get it home-it stalled if I ever took my foot off the gas. Once I made it home, I was able to start it one more time and since then it will not start.

Codes: P0087, P0193 (Pending)

History: Previously, in tank fuel pump died (3-4 months ago). I have replaced this fuel pump previously and I installed a new OEM one. I also replaced the fuel screen and fuel filter on the unit with OEM parts. This did not resolve the issue or change anything.

I have changed out the high-pressure fuel pump with an aftermarket one which did not change the issue. I inspected the cam follower (maybe wrong term) under the pump, and it looked good. I put 5w30 oil on it before I aligned it with the slot and pushed it back in. It can only go in one way due to being keyed and did not appear worn.

The battery is new, charged, and good. It has been tested with a battery tester and even pulled out and charged to make sure it wasn't too lot from me trying to start it a few times.

I am trying to post screenshots of a data steam that I was able to pull regarding fuel pressure.

Additional Info: If you look up "Veloster turbo P0087" you will find a variety of stories where individuals replace many different parts and have difficulty with diagnosing this issue. Several came to the conclusion that the HPFP was bad after changing several other parts-which is why it was one of the first things that I have tried with my issue.
Also, Veloster's of this age are known to have issues with fuel line problems. I cannot tell if mine is leaking or not. After trying to start it about 6 times, I do not see any spot of gas underneath it. However, the fuel line is covered so it can leak a little and be held or obscured by this cover.

Question: Where would you suggest I check next?