Many files moved

Hello everyone!
For some months now I have been using the portable version of Anki [Version 2.1.30 (06a69c25)] (I have a company PC and I cannot install anything) for my university studies and I am enthusiastic about it.
I use a lot of the add-on “Image Occlusion Enhanced for Anki 21 alpha” with which I made several cards.

I usually use mainly the Android version to review the cards.

I noticed that as I went through the reviews, many cards appeared with a thumbnail instead of the correct image.
Running Tools-> Check Media results in many missing files and several unused files.
Inside the <collection.media> directory, the files are no longer present.
It seems they have been deleted.

I later found the missing files inside the directory <C:\Users\Luca\PortableApps\AnkiPortable>

I suppos it is a problem of synchronization with the DB on the WEB, for which the reviewed cards are then mistakenly written in the wrong directory.

I ask you if there is a configuration file that allows you to check where the files should be saved.

I attach Debug Info.

Thank you so much to anyone who can help me.

Anki 2.1.30 (06a69c25) Python 3.8.0 Qt 5.14.1 PyQt 5.14.1
Platform: Windows 10
Flags: frz = True ao = True sv = 1
Add-ons, last update check: 2021-07-22 18:44:32


=== Add-ons (active) ===
(add-on provided name [Add-on folder, installed at, version, is config changed])
Advanced Browser ['874215009', 2020-10-04T05: 40, 'None', '']
Custom Background Image and Gear Icon ['1210908941', 2021-04-02T18: 21, 'None', mod]
Customize Sidebar ['1988760596', 2020-01-15T22: 01, 'None', '']
Frozen Fields ['frozen_fields', 2020-02-21T21: 26, 'None', '']
Hierarchical Tags 2 ['594329229', 2021-03-07T03: 25, 'None', '']
Image Occlusion Enhanced for Anki 21 alpha ['1374772155', 2020-04-28T04: 21, 'None', '']
Review Heatmap ['review_heatmap', 2020-04-30T15: 23, 'None', '']

=== IDs of active AnkiWeb add-ons ===
1210908941 1374772155 1988760596 594329229 874215009

=== Add-ons (inactive) ===
(add-on provided name [Add-on folder, installed at, version, is config changed])

https://faqs.ankiweb.net/sounds-or-images-have-gone-missing.html?highlight=media#soundimage-media-files-have-gone-missing

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