Maybe this will help shared folders to be seen on another person‘s OneDrive must be made in read right mode only. It’s a folder is ever changed to read only the user receiving it gets a shortcut only.
At this point, there is no way that you can fix the permissions back to where it shows up as a folder in windows explorer locally on the receiving computer.
Due to this folder, having a unique identifier number all permissions need to be removed in the OneDrive and then the folder moved completely out of the OneDrive. If you move it, it will not work. It has to be completely out of the OneDrive after permissions have been removed.
The receiving computer must remove all shortcuts and anything related to this file that they have in the trashcan that’s also goes for the sending computer. Anything related must be removed from the trashcan in OneDrive online also.
I recommend at this point you go to the online version of OneDrive create the folder with no share reboot the computer go into the OneDrive online folder and add read right share to the receiving computer when this shows up on the receiving computer on the online OneDrive, you then tell it to Download the folder at this point the receiving computer needs to be rebooted when it comes up both computer should be able to see the file and Windows explore without having to go online?
If this is accessible at this point, you can move the data that was inside the old folder back into the new folder. Do not replace the folder with the same name folder. It can never go back into OneDrive. Just the contents inside then it will take a few hours to sync. Keep a check on it. I usually let it take overnight The next morning. I reboot both computers to make sure they’re working and usually it’s taking care of them working properly from that point forward. You can set documents in here to be read only you not set any folders in here to be read only they all have to have rewrite permissions when they’re created.
Always make sure all window security patches are installed and you’re on the latest version of office 365. There is no cross platform sharing between personal office 365 and Business 365. You cannot share that drive between versions. These are two separate programs now that work very simile The Home OneDrive is just OneDrive the Business one Point is SharePoint OneDrive a totally different Program and cross platform. It can only be read as a shortcut. You will never be able to get a cross platform folder to share and be visible in file explorer there is secondary software that can make this happen. If it must be done it doesn’t inherently have a few additional issues if you must go that route, and I would recommend consulting a professional to handle that for you