Fired from a hospital 2 years ago. Will this ruin my clinical placements?

Hey everyone. I’m currently knocking out my pre-reqs for an MLT program and I have a massive amount of anxiety regarding future clinical placements, and I'm hoping someone here has navigated something similar. ​About two years ago, I was fired from one of the major hospital systems in my city. To be clear, it wasn't for anything illegal, no patient harm, no theft, and no failed drug tests. It essentially boiled down to a miscommunication/interpersonal conflict with a coworker that escalated to HR, and I was let go. ​My city is heavily dominated by this hospital network and their affiliated labs. I am terrified that when my MLT program goes to place me for clinicals, that specific hospital system will see I’m on their "Do Not Rehire" (DNR) list, deny my student clearance, and that my school will kick me out of the program because of it.

I am currently working in the field. I have another lab job at the other major hospital system in town and I . I've had zero issues there my questions are.

​Has anyone here had a school try to send you for clinicals at a facility you were previously fired from? What happened?

​If their HR denies my student clearance, will my clinical coordinator usually just place me somewhere else (like the hospital where I currently work)?

​Should I warn my program director/coordinator about this now, or just keep my mouth shut unless they actually try to assign me to that specific network?