Long file paths in OneDrive for Business

I have the same problem.

In our Document libraries we have a lot of files that are stored with long file paths. We have migrated them from file system to SharePoint. 

We can open these files in Word/Excel but we cannot save them in the same folder.

Did you manage to fix it?

I know we can shorten the file paths or store documents in a folder that is not so long. It does not solve our problem since we cannot so easily change the filepaths or filenames or even the sharepoint urls.

This is how far I got. 

I added a local group policy to allow long file paths.

Now Windows Explorer works fine with long file names. Both new files and copies of existing files can be put into the long folder names. 

We use Windows Explorer with synced Onedrive files from SharePoint libraries where the files are stored.

We have Office Click to run build 1808.

Save from Word does not work still even if the policy works in Windows Explorer.