FM2019 (64 BIT) ODD SUFIX file name

Hi there,

I searched the forum but found only issues with FM7, FM10.

Here is the input:

Windows 10 x64

FrameMaker 2019

Bitdefender av installed on internal SSD

External HDD running Dropbox

All files and folders on Dropbox are fully accesible by me without restrictions.

All files/projects are saved on external HDD where Dropbox is sync the files with server.

I am using this solution for years. It worked just fine with FrameMaker10. It is working PERFECT with any Adobe application (InDesign, Illustrator and Photoshop). It is working PERFECT with Office365.

It simply does not work with FM2019. It is annoying to drag all files of a project to internal SSD, format the project and move it back to Dropbox when is done. Why I cannot save it directly to external HDD without any errors like FM10 did? I am the only one having access to this particular folder. But the error is received everytime I save a MIF files as FM. Or even when I am working on a FM file and try to save. All my work is lost. Except the case I am working on internal SSD.

Please advise.

Sincerely,

Sebastian