Describe the bug
If you want to output TV Episodes and you have a Custom Level containing Export Season Posters and/or Export Show Art, then the export will fail to proceed and the status will stay at 0 of XXX.

To Reproduce
Steps to reproduce the behaviour:

1. Choose Export Type to be TV
2. Choose Sub Type to be TV Episodes
3. Choose a Custom Level containing Export Season Posters and/or Export Show Art
4. Export Media
5. The export status will stay at 0 of XXX and will not proceed.

Expected behaviour
I would expect a warning about posters and art being unable to be exported and the export to proceed, without any art or posters.

Alternatively, for TV Episodes -> Custom Levels, one should NOT be able to select or add Export Season Posters or Export Show Art or Export Posters or Export Art.

Desktop (please complete the following information):

• OS: Windows 11 Pro
• WT-NG v1.1.0

Logs
WebTools-NG.log