Issue getting the theme applied to the Site Collection

[PedroMordeP]

Hello,
I'm setting a "Change The Look" theme and getting by script the value of the web property "ThemedCssFolderUrl".

This way I know the pallet is applied is from this path "/sites/ThemeTesting/_catalogs/theme/Themed/57E2CA41"

But after setting the theme and now setting a font the "ThemedCssFolderUrl" path changes to "/sites/ThemeTesting/_themes/42" but this path does not exist.

I checked the "/_api/web/ThemeApplicationActionHistory" and the value is

{
    "d": {
        "ThemeApplicationActionHistory": "[{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_catalogs/theme/Themed/F17AB10F\"},{\"themedCssFolderUrl\":\"**/sites/ThemeTesting/_catalogs/theme/Themed/57E2CA41**\"},{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_catalogs/theme/Themed/7D491B86\"},{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_catalogs/theme/Themed/24E0032F\"},{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_catalogs/theme/Themed/2F8880A9\"},{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_catalogs/theme/Themed/2B015085\"},{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_catalogs/theme/Themed/C08EEE83\"},{\"themedCssFolderUrl\":\"/sites/ThemeTesting/_themes/28\"}]"
    }
}

The "Themed/57E2CA41" is the second value, and the first Themed/F17AB10F, I was assuming it was, what should be on "ThemedCssFolderUrl", but that folder also doesn't exist on the site catalogs.

If i apply the theme again after setting the font, the path in "ThemedCssFolderUrl" is correct again to a folder that exists.

Does anyone know if this is normal or is this an issue when applying the font after the theme?
At this moment, I don't know what is the theme applied to the site collection and where to get the theme spcolor and sptheme

@erwinvanhunen & @KoenZomers Any insights about this behaviour?

Thanks.