How to verify if all my files are uploaded to Dropbox?

I don't see any messages but the images look a lot better on the phone than on a computer monitor. However I tried to backup a folder from my computer to dropbox from the DB app installed on my computer and the app kept on crashing and freezing. Then I opened the DB website on a browser and tried uploading the folder from the site and once again the site was unresponsive and crashing. After several tries it finally started uploading it.  However the uploaded images are still not showing the correct number of files when the box is checked next to the Name title. It only selects a tiny number of files in the folder. Why is that?

Hey rdx111 let me also jump in here!

Have you tried a different browser, by any chance? Just to check if you notice the same thing there. 

Would you mind sending over a few screenshots of what you see the select the files using our website, and what you see when you check your Dropbox folder's properties?

Both Edge and Chrome crash. The apps installed on my computer and phone crash too. 

In addition, it takes more than 10 minutes to get from the top to the bottom of the "Camera uploads" folder. I have 50k+ images and videos. Literally scrolling and scrolling over and over until you get there. And your site will do this each time I go from this folder to another folder and then back to the 1st folder. My images are sorted in list view so why is this the way your website behaves? 

And NO Image or video plays in the dropbox app on my computer. Why is that?

I've wasted an enormous amount of time trying to work with this app and my tolerance is running thin. Instead of asking me to provide you with screenshots your company should be testing your software constantly to ensure speed and reliability.  You charge money but your service is useless.

From the All Files tab on the website select the Camera Uploads folder. In that folder once all of the files have loaded to the browser page you can select all photos using the tick box next to the word Name at the top of the list. This will tell you how many photos are in the folder. Also, if using the Dropbox app on your iPhone to upload these it will tell you when the upload is complete in the Photos tab of the app (though you likely don't have an iPhone with 400 GB of space to upload directly).