We have found a bug that has a workaround. The “file currently locked by another user” message seen when the preview pane in windows explorer is open and the file is opened by double clicking. Some people get a “read only” version when opening.
To see the issue, you need to have the Preview pane open (which is turned off by default - which is a good thing - on Win 7, Win 8 and Win 10), Windows Explorer needs to be set to a thumbnail view, the model needs to have a thumbnail and the user needs to double click on the model to open it. Therefore, please make sure the preview plane is unchecked or closed as Step #1 of the workaround. See below.
Workarounds include Step #1 turning off the Preview pane, Step #2 setting Explorer to use a non-thumbnail view (see below), Step #3 closing the model and double clicking on it a second time or opening models via File > Open.
- It appears to be an M3 regression
- It seems to be isolated to Win 7 - Although may occur on the Win 8 and Win 10
- If you see the issue, close the model and then double click on the model again, the issue can not be reproduced.
- When the issue does occur, the user can open the model, but it truly will be opened with a read only status