Input shaping. Something is not working right.

[dawn estuary]

For pictures see below.

Settings: Ender 5 Pro, bugfix-2.1 (variant from around 10-12 hours ago), printing at 120 mm/s, acceleration set to 2000 mm/s^2 (tried with 2500 mm/s^2 too), classic jerk, 10 mm/s^3 for X,Y, 0.3 mm/s^3 for Z. IS enabled for both axis.

TL;DR: I am trying to calibrate Input Shaping for my Ender 5 Pro.
I got the Y axis right, but the X axis is giving me a big headache.

I tried to just do a nice 15-60 Hz frequency sweep. Needless to say I couldn't find the frequency to be in that domain, so I switched it up and used the Klipper method:
I tried calculating the frequency of the ringing in the X axis based off of the ringing patterns, but I have come up with multiple, ranging from 68 to 78 Hz, so sure, let's try to find the one in that range.
I tried to do a frequency sweep with a 0.15 dampening factor. No effect. Retried it with a 0.3 dampening factor. Slight effect, but nowhere could I see the right frequency.

The last thing I tried to do was retry to do a frequency sweep, but from 10 Hz to 100 Hz, with a dampening factor of 0.45.

In the following images you can see that it has done nothing to compensate, and I still have no idea which frequency is the right one.

Could there be more noise? Could there be some mechanical problems? Do I need to print the 9th calibration tower? Could there probably be some firmware related issues? Maybe my settings are wrong? Please, tell me, I've been at this for more than 7 hours now and it is getting very tiring.

@normal harness have you tried setting up input shaping on an Ender 5 Pro? You made the config for it, so I assume you'd know more. If anyone else has tried setting up IS for an Ender 5 Pro, please let me know.

[normal harness]

no. Original configs was provided by myself, additions like Input shaping where added by others or with a script.

[dawn estuary]

Ah I see.

Well, if anyone else has any idea, let me know

[dawn estuary]

@dreamy lake Any ideas?

[restive spruce]

If your testing from 10-100 then be sure and uncomment SHAPING_MIN_FREQ and set that to 10.

[dreamy lake]

A lot of the patterning visible there may not be ringing. Straight lines next to scalloped edges are likely from something else. The ringing that is visible is not especially pronounced. Your acceleration and jerk values are quite low. Also, have a look at all the things I mentioned under "Testing / tuning" in the OP of the original IS PR https://github.com/MarlinFirmware/Marlin/pull/24797. Finally, it may be that there are multiple resonant frequencies in play. Those are harder to measure.

[dawn estuary]

It's set.

[dawn estuary]

I'll give this a read. Yeah, I don't expect it to be ringing either.