Add-PnPListItem using -Folder causes some users to get 'Access Denied'

[robAttrell]

I'm trying to run a script that creates list items and it works perfectly for everyone when creating items in the root SharePoint list, but when adding new items to a folder (with -Folder), most users (but not me [owner] or my test account [member]) get an 'Access Denied' error. I've tried to escape every possible character (even if I don't need them escaped), using a folder name with no spaces, etc. Always most people get 'Access Denied', and looking up the code for the commandlet I don't see Access Denied anywhere so I'm not even 100% sure where it's coming from, but all users have access to the folder.