Auto upload filename - number at end

I just setup Nextcloud and so far so good!
I have the iOS client and I’m trying to setup the auto upload to work like my previous cloud service. I am trying to have the filenames be just YYYY-MM-DD hh:mm:ss.jpg.

The client seems to add a filenumber to the end of the filename. For example, instead of:
2019-10-09 05.40.13.jpg

It uploads this:
2019-10-09 05.40.132410.jpg

How can I turn off the additional numbers at the end?

Any ideas anyone?

Still looking for guidance here.
So far, the extra numbers at the end are not posing an issue, but I’d rather they not be there like all of the other pix I have.