I had something like this happen to me recently on my Ender 3 Max Neo. My filament feeds from a separate dry box and the spool was slightly crooked. Once the angle from the box to the extruder got too severe, the spool bound up and wouldn’t feed anymore. Moving the spool so it properly rested on the rollers fixed it.

The mesh ends up being pretty similar every time, showing that the right side of the bed is lower than the left. The concern is that, when printing after auto leveling, the nozzle is far too close on the right side, causing first layer issues, but all is well on the left. It’s almost like the printer believes that the nozzle is further from the bed than it actually is, but only on one side.

I found that the bolts holding the gantry to the base had come loose slightly, and tightened them. That seemed to help a bit, but the issue is still there. I was going to try leveling the x gantry, but I’m still trying to figure out how to do so.

I did some research and was able to pull the mesh. I put it into a visualizer and found that the right side is definitely incorrect (as it matches with the “too low” behavior that I’m seeing. I tried to copy the image here, but Sync won’t let me, but here’s the values.

 0        1        2        3        4        5        6        7        8        9       10       11       12
 0 +0.03500 -0.02855 -0.09156 -0.15566 -0.22250 -0.29867 -0.38125 -0.45758 -0.51500 -0.54590 -0.55844 -0.56363 -0.57250
 1 +0.01869 -0.01856 -0.05355 -0.09305 -0.14383 -0.21602 -0.30324 -0.38746 -0.45064 -0.48415 -0.49888 -0.50610 -0.51707
 2 +0.00234 -0.00695 -0.01215 -0.02553 -0.05938 -0.12765 -0.22023 -0.31329 -0.38297 -0.41951 -0.43676 -0.44629 -0.45969
 3 -0.01393 +0.00144 +0.02248 +0.03217 +0.01352 -0.05072 -0.14723 -0.24723 -0.32193 -0.36066 -0.37977 -0.39103 -0.40621
 4 -0.03000 +0.00178 +0.04016 +0.06533 +0.05750 -0.00240 -0.09922 -0.20143 -0.27750 -0.31633 -0.33563 -0.34711 -0.36250
 5 -0.04428 -0.00747 +0.03596 +0.06615 +0.06324 +0.00837 -0.08337 -0.18082 -0.25285 -0.28864 -0.30564 -0.31512 -0.32836
 6 -0.05734 -0.02364 +0.01604 +0.04376 +0.04156 -0.00781 -0.09062 -0.17835 -0.24250 -0.27303 -0.28596 -0.29184 -0.30125
 7 -0.07236 -0.04528 -0.01310 +0.00888 +0.00535 -0.03877 -0.11166 -0.18823 -0.24340 -0.26810 -0.27650 -0.27838 -0.28352
 8 -0.09250 -0.07094 -0.04500 -0.02781 -0.03250 -0.07238 -0.13719 -0.20465 -0.25250 -0.27246 -0.27719 -0.27582 -0.27750
 9 -0.11980 -0.10205 -0.08041 -0.06654 -0.07207 -0.10913 -0.16849 -0.22982 -0.27275 -0.28955 -0.29183 -0.28831 -0.28770
10 -0.15219 -0.13878 -0.12196 -0.11197 -0.11906 -0.15424 -0.20929 -0.26559 -0.30453 -0.31884 -0.31920 -0.31399 -0.31156
11 -0.18660 -0.17777 -0.16597 -0.16010 -0.16902 -0.20270 -0.25387 -0.30559 -0.34092 -0.35300 -0.35165 -0.34493 -0.34090
12 -0.22000 -0.21563 -0.20875 -0.20688 -0.21750 -0.24949 -0.29656 -0.34348 -0.37500 -0.38473 -0.38156 -0.37324 -0.36750

The bed leveling is done with the bed and nozzle preheated to printing temp. As for the probe, it’s the stock probe on the Ender 3 Max Neo.

The interesting part is the heat soak. I typically heat it and then only wait a minute or two. I’ll let it sit for a while and try again.

How do you edit, or even view, the map that’s built?

That’s what I imagined I’d see or hear and I’m not seeing any of that. I’ll take a closer look again though now that I know for sure. Thanks!

Not that I’m aware of as I don’t hear any odd noise from the extruder or see marks on the filament. I’m new to this though so I probably don’t know what to look for. What told you that yours was slipping?

I played around with retraction a bit, but I’ll give that another shot. Thanks for the input.

It seems to be randomly within a layer rather than at the start and changes to retraction don’t seem to improve it. Oddly enough, I’m noticing on a more recent print that it seems to happen more frequently within supports (generated by Cura), which I think are printed faster.

I’ll try drying the filament. All of my Creality filament is from Amazon, where as the Inland stuff is all from my local Micro Center. I wonder if the filament from Amazon is just sitting around for a while, or in poor conditions.