Password has been changed

I'm using Neo4j desktop on Windows 10.
Usual 'port conflict' problem occurred so I had to backup "c:\user....Neo4jDesktop" and "c:\user...\AppData\Roaming\Neo4j Desktop" and uninstall/reinstall Neo4j Desktop.
After reinstalling I copied "c:\user...\Neo4jDesktop" (also provided by Neo4j Desktop uninstaller) but not AppData\Roaming, because it looked working fine.

But then I get this error message on starting the DB restored from the backup:

"Password has been changed
Local Graph password has been changed. Please enter Graph password:
Graph password
* You can ignore this change until the next Graph start. "

passwordHasBeenChanged|620x500

I tried my old password but it says "Failed - not a valid password"

So I tried selecting 'Ignore' and browse with Neo4j browser (and with chrome: 7474)
and no queries are processed.

match (n) return n
ERROR
#### Neo.TransientError.Database.DatabaseUnavailable
Database 'graph.db' is unavailable.

In My Project tab Neo4j Desktop 1.2.4 window, the dashboard says the DB has 16 nodes (6 labels), 8 relationships (1 types),
but on Neo4j browser, Node labels: there are no labels in database, Relationship Types: NO relationships in DB, ...
(same for web browser)
Connections status seems ok:
You are connected as user neo4j
to bolt://localhost:7687
Connection credentials are stored in your web browser.

How do you people upgrade Neo4j when there's a possibility of losing all data?!

I'm also having this issue. I'm being prompted to enter my Graph password even though I'm not doing anything differently. This is pretty annoying and I'm not sure why this keeps happening.

I shut down the database and try again. That makes the problem go away momentarily.