Update on Back Pain

I made a thread here about a month ago
https://forum.barbellmedicine.com/forums/pain-and-rehab-q-a-with-dr-derek-miles-and-dr-michael-ray/62922-low-back-pain-and-deadlifts-general-programming
And since then progress has been up and down

For Bench, things have been going fine as they were before, but for squats things are maybe worse
The pain is very inconsistent. For example I could squats with 100kg for a set of ten, or 110kg for a set of 5 without much issue, but then next time I would go to squat the warm ups with just 80kg for a few reps would give me problems. I tried front squats and those worked a bit, but again after 2 sets of 10 for 70kg that went fine the first rep on the third set gave me incredibly sharp pain which gave me walking problems for the rest of the day (walking had never been a trigger for pain up until then, only sitting up right). The “entry point” seems incredibly inconsistent right now

As for deadlifts these are actually going better. Right now I’ve worked to doing block pulls and sumo deadlifts are two main variations mostly fine. The problem is that the weight isn’t really progressing. Between the 90kg-110kg range my reps have gotten better, but any time I try up to around 120kg I hit a wall again, which is exactly where I was a month ago and I’m not sure how to progress now.