Hi there try this make sure the sheets to be protected are not selected but
only those that will not be protected and uncheck the locked cell box in
protection tab and then go and to review and protect your sheet you 'll be ok

"LOCKING CELLS" wrote:

I am having trouble protecting some cells. I mark all the required cells to
be locked, then apply the Protect to the spreadsheet. Some cells are locked
and some are not. What's up?