Black screen in Fluent Reader after importing OPML file

Describe the bug After Fluent Reader import an OPML file from Feeddemon screen is black. Size OPML is 323Kb

To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A clear and concise description of what you expected to happen.

Screenshots Black screen, application is hanging, no error

Platform (please complete the following information):

• OS:26200.9445 Windows 11 25H2
• Version 1.2.2.0

Additional context Add any other context about the problem here.