Text going back to default format after applying custom format


I’m working on a text that has a custom format applied to it that’s, obviously, different to the one I’ve set as default format for this project. However, whenever I undo a bullet list, my text goes back to the default text. I’m working with a lot of complet bullet lists, and I have to re-apply my custom format constantly (select all, apply custom format, keep working…)

I’m not sure if this is an intended behavior or if it’s a bug… Seems to me more like the later, so I’m posting here just in case.

I’m using the 1.9.6 version (lastest) on Windows 10

Thanks in advance