Can't scrub frame by frame like in Web

[makermatic]

Context

Studio name: Pudgy Penguins
Kitsu publisher version: 0.5.1
Kitsu publisher installer: exe
Zou/Kitsu installation type: self-hosted

Desktop (please complete the following information):

• OS: Windows 11
• Version of your OS: 23H2

Describe the bug
When I play a video with the play button it works just fine. But I can't scrub frame by frame in the timeline like I can in web

Expected behavior
A clear and concise description of what you expected to happen.
This is how it looks in Web. I can scrub frame by frame in timeline

Screenshots
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Additional context
Add any other context about the problem here.