Hi Shayne, are these files ending in a .bak file extension, or do they have _bak appended to the file name before the file extension?

When you save a file that will overwrite an existing one, MoI will rename the existing file to filename_bak, then write the file to the original file name, and when that is finished it deletes the original (now renamed) _bak file.

So for example a file named filename.3dm will get renamed to filename_bak.3dm, then after writing is finished to filename.3dm the filename_bak.3dm will get deleted.

It does this so that if there is any error (such as disk space exhausted for example) in writing the new file, the existing file won't be destroyed.

But under regular circumstances the filename_bak.3dm files will get deleted automatically. If you have restricted permissions set on the folder where you're saving to that could possibly prevent MOI from deleting the file. So that's something to check.

- Michael

Ahh yes they are _bak , nothing has changed in my file permissions
perhaps if I close the open file too quickly when it is still writing or deleting the _bak it may leave it behind.
cheers
shayne

Hi shayne, well it doesn't try to delete the previous file until after the new one is completely finished, so I doubt it's a timing thing.

Does it happen every time when saving to a particular folder?

Also does it only happen when using a particular file format?

- Michael