Again- maybe, maybe not.
Why run softs now and then try to fix the issue later retroactively after opening while trying to increase capacity? For what purpose?
This is literally why they run the trains for weeks, increase load, etc. It's not some quota that they have to run 100 cycles before they're allowed to start softs. No; they run dummies, they run water bags, they run empty, they increase capacity, they increase the amount of trains, etc etc because each change to get it to full operating speed can create issues. And the plan is always to diagnose and correct those issues prior to open.
Again, I don't know what the issue is in particular; but to think there wasn't going to be an issue as they increased the stress-load closer to actual capacity is incredibly naive.
They are aiming for their June 13th opening, not some hopeful and mythical May 24th date for softs (which wouldn't have even happened anyway as they haven't even turned over operations). If softs happened, that's just a better benefit to both us to have earlier rides and them to expand testing and adjustments. But they put this wiggle room in specifically for these reasons which are known to happen regularly.