Ender 3 Pro bed mesh changing constantly

[unreal pond]

I have manually leveled the bed multiple times. Used bed tramming until my eyes bled and run the bed mesh updater in octoprint, and got the first mesh. 36 hours and 1 print later, the bed mesh looks like this. I have brand new:

• glass bed
• level knobs
• hot end

im using octoprint, bltouch, and some UBL start gcode to load the mesh before printing and 4 point tilt check. last screenshot was started minutes after creating a new mesh this morning (should be the 2nd mesh screenshot from todays date)

if i can get a print to get the first layer to stick/work, it prints fine, but the first layer is trash on 90% of prints. using a stone colored filament in this screenshot

i have marlin 2.1.2 and UBL mesh uses a 49 point probe, but only probes 42 points and infers the rest (apparantly thats a known bug when it probes a specific spot)

[wise trellis]

Probably a daft question, but do you level your bed when up to temp 55,~

[unreal pond]

are you asking if i did the tramming with the bed at 55? (if you are, pretty sure i did it cold) or are you asking if the mesh build was done on heated bed? (if so, yes, bed's set to 60 for mesh building)

[unreal pond]

for reference, here is the first bed mesh i built on octoprint on 5/20 was damn near perfectly leveled. and that was the next mesh, 1-2 prints in between on 5/22

[humble dagger]

is your bed perchance wiggly? can you lift it and it moves in any spot?

[unreal pond]

Just Checked, it's pretty solid

[humble dagger]

I would check all the different knobs and screws, make sure everything is taught. tighten all your springs up to 2/3rds compression and then relevel. (new user also) my bed was wiggly and loose, and I couldn't adjust because the springs werent compressed at all.