Error when importing settings file from other smartphone

[pstein]

I exported the settings from AIMP for Android v4.15.1563 on my old Android 14 Samsung smartphone.
Then I copied this settings file to my new Android 16 Samsung smartphone.

When I imported this *.zip AIMP tells me at first as notification:

"Operation successfully completed. You can launch the app"

Then (immediately after start of AIMP) shows me:

"ERROR: Invalid stored block length"

and (3 seconds later):

"Skin error: Unexpected end of ZLIB input stream: Default skin will be applied"

Whats wrong?

I can open the *.zip file with a zip archiver without any problems. So the *.zip structure isn't corrupted.

As far as I remember I download and setup years ago a new skin for AIMP in the past.
But that shouldn't matter since all necessary stuff should be added to the exported settings file.

One related question:

The exported AIMP files is named with a prepended date like: "2025.05.31-AIMP.UserSettings.zip"
When I manually append the AIMP version like

2025.05.31-AIMP.UserSettings_v4.15.1563.zip

does that confuse the AIMP import procedure?

[Artem]

"Skin error: Unexpected end of ZLIB input stream: Default skin will be applied"

This is skin error, it does not related to backup archive.  It seems like selected skin in imported settings has been corrupted.

The exported AIMP files is named with a prepended date like: "2025.05.31-AIMP.UserSettings.zip"
When I manually append the AIMP version like

2025.05.31-AIMP.UserSettings_v4.15.1563.zip

does that confuse the AIMP import procedure?

Yes