I have problems with my android phone uploading duplicate photos to DropBox. How can I fix this?

[astersrule]

I have a Moto Z2 Play phone with Verizon. I just took 9 photos with it. I selected the 9 and told the phone to share with my Dropbox. What I ended up with in Dropbox is 18 photos - the original 9 were duplicated. (Not using an SD card.)

Each pair of duplicates has exactly the same file size and meta data that I can get Windows 10 to show. One set of 9 photos is named with the following format: 2019-08-02 11.01.05.jpg. Its duplicate is named with this: IMG_20190802_110105496_HDR.jpg. I have no idea which is the "original".

This duplicating happens consistently and is a pure nuisance. I keep seeing references to 3rd party apps being the problem. I have backup and sync with Google turned off but could it be the source of this problem anyway? What other 3rd party apps most likely to be a problem? It's not like I have a lot of apps installed.

 

[SpookDroid]

HDR is the problem. It saves two files to process the HDR portion (which as you can see is why you have one HDR file as the duplicate). I believe that if you sync Dropbox to your camera folder the duplicates don't happen (but I might be wrong, haven't used Dropbox in forever).

 

[astersrule]

So, the duplicates are actually on the phone? Why don't they all show on the phone so I can know they exist? And how can the HDR photos be any different from the other ones if all the metadata is the same?

 

[SpookDroid]

HDR is actually several pictures spliced together... The system is designed to just show the hdr version.