Preventing Temp Views on 365

How do I prevent staff from creating a temporary view on a shared worksheet? We are using 365 in SharePoint.

What is frustrating is that I have two identical sheets created from the same template for two different divisions in the same workbook.

One region's sheet is creating temporary views daily or several times a day. Where the second division's sheet does not have this problem & never has.

I reviewed both sheets & I can't find any difference. I turned off autosave on the sheet that is creating the temp views, because that was the only difference between the two sheets.

Everyone is annoyed, complaining & my boss is pissed.

Please help!