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Unless u modified it, it should automatically save when you shutdown puppy.
IF it does not save when shutting down and you did NOT modify it, your pupsave might be broken.
IF this happens at ALL your pupsave, despite deleting and making new pupsave, there is a slim chance that your flash drive is spoiled.
You can test it by putting a huge file inside, and when u copy the file from your flash drive to anywhere, check if it is corrupted. IF it corrupts, your flash drive is spoiled.
IF it does not corrupt, come to us again.
IF it does not save when shutting down and you did NOT modify it, your pupsave might be broken.
IF this happens at ALL your pupsave, despite deleting and making new pupsave, there is a slim chance that your flash drive is spoiled.
You can test it by putting a huge file inside, and when u copy the file from your flash drive to anywhere, check if it is corrupted. IF it corrupts, your flash drive is spoiled.
IF it does not corrupt, come to us again.