File not saved on OneDrive without error message

[LittlePrimate]

Describe the bug:
In an effort to have a proper backup of all changes, we used OneDrive as location to save the json file.
The save button of the dragon worked normally (the green confirmation window appeared), no error was displayed.
A file was created but the size is <1KB and the file is almost empty.
The file history of OneDrive shows four versions, so obviously something was done with the file but the actual contents (file diagram, threats) were not included.
I am not sure if the problem is OneDrive or something about the specific link (e.g. the link included white spaces).

Expected behaviour:
Ideally the file can be saved on OneDrive.
Alternatively, an error should have occured that something went wrong during the saving process.

Environment:

• Version: 2.4.1
• Platform: Desktop App
• OS: Windows

To Reproduce:

• Create a new project and add at least one diagram with some basic information.
• Save the file and select your OneDrive as a save location.
• Check the file afterwards, for us it existed (so some part of the save process went through) but did not contain the diagram or any threats, when opened with a json file inspector.

[jgadsden]

Thanks for the bug report @LittlePrimate , and this seems a very severe bug - the last thing that we want is data loss of any sort
Marking this as a priority, and if there is any more investigation (or even a fix) you can do that would be great