UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134

Example URL:

Steps to reproduce the problem:
1. Goto sharepoint online page
2. Open document in online editor
3. close document
4. try to rename document failed because its locked by the same user.
5.try to move the document failed. because its locked by the same user.

What is the expected behavior?
Within Internet explorer the document is not locked.
Files should not lock after viewing or editing online.

What went wrong?
It happens since the update to the current build of 12 June.
Tested with x86 and x64 on multiple systems Windows 10.
Not all files are locked but 1 out of 3 lockes. After 30 minutes the lock disappears and the file can be renamed.
Tested with Edge and Internet Explorer and they both work fine.

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? Yes version before 12 June

Does this work in other browsers? Yes

Chrome version: 67.0.3396.87  Channel: stable
OS Version: 10.0.17134.112
Flash Version: