[kristop]

Use the swap file option
... I suggest you use mobilesheets to perform a backup first (I do it using the companion but you can do it with MS itself)...
... turn off auto updating of the app  ... you don't want an unrexpected update immediately before a gig.
Always take a backup prior to a manual update...
Geoff

Hey, thanks for the precious advices !
Swap worked perfectly.
I did the backup anyway (wish I did that earlier, see my other posts). From the companion, it saves on my PC, but not on my tablet, so I should do it also while roaming to have it on my tablet.
Thanks again.