[Cura 2.4.0 don't save matterial settings and tweak]

Hi Sima,

and welcome to the forums!

This sounds like either a temporary problem or a bug. Take a look at this guide and reset your Cura settings:

https://ultimaker.com/en/resources/20499-reset-cura-2-1

If it happens again, look inside the "cura.log" file for any hints as to why this happens.

 

I may be able to give some insight here. Many of us are using a work-around where we manually remove the True line generated by Cura in the material file.