Cant copy FROM sd TO internal-phone

[AC Question]

Android 6.0.1 S7Edge
Geezuz....this shouldnt require a post to figure out, but.....

Because my good ol' KeepassDroid password app cannot write to a database file on the SD, I must move/copy the database file FROM the sd TO the internal phone storage when I get a new phone..

I plug the phone into the PC.
On the phone I drag down to notifications, select the USB Charging notification, change to "File Transfer"
Now the PC can see CARD and PHONE
I copy the file from the CARD to the PHONE

Disconnect.

On the phone I open my KeepassDroid app, navigate to tell it where the new database file is, and......
....wait for it.....
It shows up ON THE SD CARD

In anticipation of some of your well-meaning responses let me assure you that:
- I'm POSITIVE I'm looking at the file I JUST COPIED to PHONE and not the original file from SD ( I even renamed it in the PHONE location to ensure I wasnt screwin' the pooch there)
-I DO NOT want to get a NEW app because I don't want to re-enter dozens/hundreds of entries.

Its almost as thought Android 6.0.1 is allocating CARD space as "internal storage" space to "help" us stupid phone-users along (to which I say "stop helping")

Any sage advice?

 

[anon(632115)]

If you remove the SD card what happens? The thing that springs to mind is not having write permissions when using the PC so can you try using Samsungs MyFiles app which is in the tools folder on the first page of your app drawer.

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[Rukbat]

I keep my kdbx file on Google Drive, so I never run into the problem (unless I have no mobile data and no wifi). It also keeps all my devices synced to the same password file.