Hi there! I see that when you press play on a movie in Tubi, it plays for a second then returns to the play button instead of continuing. Let’s get to the bottom of this—can I ask a couple of quick questions first?

1. Are you using the Tubi app through a browser on your Windows device (WebKit-based), or is it a separate Tubi app installed on your system?
2. Have you tried refreshing the page or restarting your browser already?
3. Is this issue happening with all movies or just specific titles?
4. Also, is your internet connection stable and reasonably fast?

These details will help me guide you better. Meanwhile, here are some initial steps you can try since you’re on Windows with a WebKit browser:

### Step 1: Refresh and Restart
- Refresh the webpage and try playing the movie again.
- If that doesn't work, completely close your browser and reopen it to try Tubi again.

### Step 2: Clear Browser Cache and Cookies
Sometimes stored data can cause playback issues. Here’s how:
- Go to your browser settings.
- Find the option to clear browsing data/cache (make sure to include cookies).
- Restart your browser and try playing the movie again.

### Step 3: Check for Browser Updates
Ensure your browser is up to date, as outdated versions can have compatibility issues with video playback.

### Step 4: Disable Browser Extensions
Some browser extensions might interfere with video playback. Try disabling any ad blockers or privacy extensions temporarily and see if playback improves.

### Step 5: Test a Different Browser
If you have another browser installed, try playing the movie there to see if the issue is specific to your current browser.

### Step 6: Check Internet Connection
Make sure you have a stable and reasonably fast internet connection. Try running a speed test to verify.

If after these steps the problem persists, there may be DRM (digital rights management) or other issues at play, or it might be an account/device glitch. I can guide you through more advanced troubleshooting or checking for server-side problems.

Does this plan sound good? And please share the answers to the questions above so I can tailor the help further!