Updating old database not working

[soulky]

I am having an issue to correctly use an old database with 0.51 version.
I believe the old database version containing all thumbnails is 0.39. Now when I try to use this database with version 0.51 it starts to recreate all thumbnails which are already there.
In the settings thumbnails window I can see a directory path name /@/ together with the correct number of thumbnails and a huge cache size.
However for some reason xnviemp does not access this cache, it start to redo all thumbnails using the actual drive name.
How can I tell it to use the cache that is showing as /@/ as a pathname instead?

[xnview]

It seems that you have used 'base path of your pictures'

[soulky]

It seems that you have used 'base path of your pictures'

Basebath is set to \. As the source is an external media which has different drive letters assigned depending on which computer it is connected. So by this I expected it do ignore the drive letter and store them relatively. But it doesnt.
It does not make sense to have the thumbnails of the files getting created over and over again just because it is connected to a different machine.

[xnview]

The mounted path is the same?
Do you have /@/ on all entries?

[soulky]

It is running on Windows os.
In this particular case even the assigned drive letters are the same on both machines. But even then computer1 is doing its own thumbnails with /@/ path and computer 2 is doing its own thumbnails with driveletter as path. I believe this also means that all all categorization and rating are not available on both computers.

[xnview]

and you have the same basepath on the 2 computers??

[soulky]

and you have the same basepath on the 2 computers??

What exactly do you mean by basepath?

[xnview]

The settings basepath in Option>database

[soulky]

Where it says basebath of your pictures?
Well there is no change of settings as xnviewMP is not installed on the machines itself. It resides in a seperate folder on the portable device. So there is absolutely no difference if the portable device is connected to computer 1 or computer 2. The settings for xnviewMP are exactly the same.

[soulky]

Is there in the meantime any advise on how to make xnviewmp use the existing database?

[xnview]

Is there in the meantime any advise on how to make xnviewmp use the existing database?

If you have /@/ in the database, this can be the problem...

[soulky]

Is there in the meantime any advise on how to make xnviewmp use the existing database?

If you have /@/ in the database, this can be the problem...

Ok. But how can I get rid of the problem. The behaviour of xnviemp does not sound right to recreate thumbnails of the same folder only because the portable decive has been attached to another computer while all other setting are the same.

[xnview]

Ok. But how can I get rid of the problem. The behaviour of xnviemp does not sound right to recreate thumbnails of the same folder only because the portable decive has been attached to another computer while all other setting are the same.

Is it possible to start with a clean database, and check if you have '/@/' again in one of your 2 computers?

[soulky]

It seems that during upgrade the basepath has changed. When I set it back to the original, then it works. However there is a new issue then I gonna open a new thread for.