You might need to remove cache. It has the playlist cashed.
For me it was in homedir/.cache/casualOnTheSpot
I deleted the whole folder but needed to log in again.
EDIT: sorry now I noticed you use windows. I am not sure where it saves cache.

from onthespot.

This worked, thanks!

The only downside is that, as you said, you need to log in again

On Windows the cache is at:

c:\Users\$USERNAME\.cache\casualOnTheSpot

I'll keep this as open as it's still an unresolved bug technically

from onthespot.

If you don't want to re-log every time you clear the cache, you can delete everything but the "sessions" folder. This way you stay logged in but it still clears the cache

from onthespot.

As a workaround I wrote a little script to optionally delete any cache desired and hide the log console, before starting onthespot.

If it can be useful to anyone, it can be found here: https://github.com/lunndal/onthespot-cachefix/

Syntax

All arguments are optional.

.\Start-OnTheSpot.ps1
    -DeleteCahce    What parts of the cache to delete before starting onthespot.
        All         Delete entire cache. Forcing all files to be downloaded.
        Playlists   Delete only cached playlists. Will only download new files in list.
        None        (Default) Delete nothing.
    -HideConsole    Hide the log console.
    -Executable     Path and filename to onthespot executable.
    -Cache          Path to the reqcache directory.

Example

.\Start-OnTheSpot.ps1 `
    -HideConsole `
    -DeleteCache Playlists `
    -Executable "C:\Program Files\onthespot\onthespot_win_ffm.exe"`
    -Cache "C:\Users\USERNAME\.cache\casualOnTheSpot\reqcache"

from onthespot.