Game breaking bug

I started playing Dead Space remake on Xbox series X. At around chapter 11 after collecting all weapon upgrades and completely filling in all power node slots for all weapons I went to the shop to change weapons. That's when I found out I couldn't. I only had the option to save my weapons in my inventory. I thought oh well I'll play thru till new game+ and that will fix my issue. Upon playing new game plus when I got to the first store I was excited to get all my weapons back and the bug to be gone, WRONG! THE BUG STILL EXISTED. NOT ONLY THAT BUT I BOUGHT THE UNIQUE 99K SUIT IMMEDIATELY AND SOUPED IT UP TO THE MAX. Then I tried the workarounds for the bug again, non of which worked when I originally discovered it in chapter 11 but who knows it could have happened in chapter 8 that's around the last time I switched my weapon loadout. So I switched from the unique suit back to the lvl suit. After switching to the lvl one suit with no avail trying to get my weapons equipped and out of my inventory. I decided to put back on the New game Plus Suit.... It HAD DISAPPEARED FROM MY INVENTORY. EA really needs to get their act together. Now I'm going to have to reload a pre new game plus save (I saved one time every chapter) and find out when the bug occured and replay the game thru there, possibly reacquiring all the weapons upgrades as well because I was missing some up until chapter 11. This frustrates the living hell out of me. I've tried every possible known fix and NONE worked. So now I'm basically just going to give up, it's not worth my time and effort to go back and find the 6 or 7 weapons upgrades I was missing if indeed the bug occured before chapter 11 and playthrough till the end again. EA you just lost a customer for life!!!?