So you created a Custom Filament brand\vendor Profile - basing it off Generic PLA, or some similar WOOD profile?
The added custom Filament PRESETS from that MASTER CUSTOM PROFILE - and configured those presets?
Otherwise, for example - if it was just in the filaments part- and filament on BAMBU PLA Basic - thats what the PARENT filament will be -and what you wil need to look for in the DEVICE screen etc and what it will be listed under.
AND
thats where the K profile will be saved as.
But however, if you DID create a custom filament PROFILE first … I find the sequence important sometimes.
- Custom Filament profile (perpare- cog - custom filaments) - called simply SUNLU PLA WOOD
2a. Define a Filalment parameters against 1 (prepare- drop it down and choose profile from 1)
2b. Edit Paramaters, eg temps, colour, etcc etc- save that FILAMENT with a specific name for those parameters
2c. you will now have something like SUNLU PLA WOOD and SUNLU PLA WOOD - DARK BROWN - 180C in the list
- Select that new SUNLU PLA WOOD - DARK BROWN etcc in the Device AMS slot . leave Kvalue empty for now
- Go to Calibration and Calbirate that saved filament- SUNLUA PLA WOOD - DARK BROWN - 180C etc erc
- Save the result
- Go BACK to the Device- AMS screen - and you should now have a k-value to select.
7, Close and Reopen Bambu studio and check if its all there.
8a) Check manually on the printer. change the filament, choose SUNLU vendor, look for PLA - Wood-Dark green etc
8b) Check tthe K Value has flowed through.
Somethimes if you dont select it in Step 3, tthen calibrate it it seems to get lost, at least in my experience.
---------------Additional Screenshots for context -----------------
Create the Custom SUNLU WOOD PROFILE

Save\create this and head back to the Prepare Screen
I have selected it in Slot 1 here- but its the parent unmodified SUNLU WOOD PROFILE
- you can tell beccause it has that huge long name @Bambu Lab X1 Carbon 0.4 Nozzle etc on the end

- if you want tweak the colour and basic print temp ranges, price etc for the MASTER profile and SAVE it.
Then, if you want- added another Filament preset with custom speciffics - Wood, colour, price etc etc in Prepare tab, Fillaments - then save it. Give it a meaning ful name
This is the newly saved filament (not the master filament type one, we are going to Calibrate)

However - in Device Screen before calibrating, choose trhe master SUNLU WOOD PLA - k value blank for now

Go ahead and calibrate on that, ensure you reselect the FILAMENT preset, not the master profile.
Save the result and chec k the result page - verifiy the name, and the fact its against the correct parent filament profile.
If done correctly - you can now select it in Device-AMS screen and it should “stick”.

Now, its the internet, and I suck at understanding others most of the time- so If you have already done all this and still doesnt work -apologies, this is what works for me… and maybe wood isnt a great example, but I use the method below for setting up any\all my filaments and works well for me.
MASTER PROFILE (Vendor, Material, Serial\type)
– FILAMENT PRESETS (Specifics, Colour, Temp, cooling etc)
As I often have different custom setups per filaments for different reasons.
- eg even Wood- I have 2 temp\coolins presets for the same Wood filament - to get a darker colour you want different setups etc.
The only downside, is admin overhead, and your doubling up “Filaments” in the drop down list - example here with PLA META - witth a META PINK - preset
