you need to provide details. come on... can't help with simply saying not working.
Nintendo 3dsxl with luma 8.1.1 installed sys11.6
1. I downloaded the v1.1 update from the eshop.
2. I downloaded IPS Patch collection and downloaded merge_ordered tool
3. I used python3 to create code.ips
4. Used ips are Guarantee Catch, all pokemon rename-able, instant message display, quick hatch, walking / running speed * 1.375, Disable ingame NFC, Saltysd_UM, PC Anywhere, SciresM's QR Patch, Catch Trainer's Pokemon, Be able to learn all TM / HM, No QR Scanning CoolDown, Shiny Lock Removal, Customize shiny rate 25%, inverse type chart, All Stats + 6 in battle, Mega evolution remains, even after battle (mega-evolvED.ips),
Mega form pkm will not revert back when loads the save (Bypass Mega check (party pkm) .ips), No force trainer battle, Legendary to be played with the Royal Dome Battle & Battle Tree (Super).
This is the same ips that i used with version 1.0 and with it the game not crashing.
5. another test I did with the merge.exe program but with the same result.
I hope I have been detailed now
thanks for help!