Unable to create files

When trying to create a file, such as index.php, after entering the name of the file and pressing enter, or clicking off the selected file it self-deletes, making it impossible to create files.
Is this fixable? I've already reinstalled SFTP 2.5 twice, restarting my computer each time.

I just read a post about this problem stating that there's going to be a fix. Sorry for the spam.

Actually this seems to be a new bug. We will look into it.

Bug found and fixed. The patch will be available in the next build (1-2 days).
Thank you for reporting this bug.