Hi there! I understand that you're having trouble with the location marker in Gaia GPS not being displayed. Let’s work through this together.

First, could you let me know if you've already tried any specific troubleshooting steps, such as restarting the app or checking your location settings?

In the meantime, here are a few things you can check:

1. Location Services: Make sure that the location services are enabled on your Android device. Go to Settings > Location and ensure it's turned on.

2. App Permissions: Verify that Gaia GPS has permission to access your location. You can check this by going to Settings > Apps > Gaia GPS > Permissions.

3. Reset the App: Sometimes simply restarting the app can resolve minor glitches. Try closing Gaia GPS completely and reopening it.

4. Compass Settings: If the location marker still doesn't appear, you can try toggling the compass setting. Go to Gaia GPS > Settings > Map Controls, turn the compass off, close the app, wait for about 30 seconds, relaunch the app, and then toggle the compass back on.

5. Developer Options: If you're comfortable doing so, you can also try checking the Developer Options in your Android settings. Sometimes certain settings may need to be enabled to ensure proper location services. Go to Settings > Developer Options, and make sure any relevant location settings are set to "On."

If these steps don’t resolve the issue, it may require a bit more investigation. Let me know what you've tried or if you’ve reached a certain step, and we can go from there! Are you satisfied with the solution I provided so far?