if you mean a sample you’ve recorded, that will not automatically save/reload with a project. you have to save the contents of recorder buffers manually. the sample memory is separate from the project data on your cf card, so no matter project you load, whatever you have presently recorded into the buffers will be the same.
Yeah, no,everything you change in tour project is instantly saved (even when the power is cut off) (apart from samples youve recorded in and not saved)
and when you change project your current project is saved again before the change
so that doesnt work
as mentioned, saving your part and reloading the part might work
or in the project menu use SAVE, and then when needed RELOAD