Hello! I understand you're having trouble with messages not appearing after you send them in the SLS Official Swinger Community app, and that the messages aren't visible on your laptop either. Let’s try to get to the bottom of this.

First, just to clarify a couple of things:
- Are you using the app and the laptop on the same account?
- Have you noticed this problem starting recently after any update or change?
- Are you connected to a stable internet connection on both devices when you send the messages?

Meanwhile, here’s a step-by-step approach we can try:

1. Check Internet Connection: Ensure both your devices are connected to a reliable internet source. Sometimes messages may not sync properly if connection is unstable.

2. Refresh the App and Website: In the app, try closing it fully and reopening it. On your laptop, refresh the browser or log out and log back into your account to force a sync.

3. Clear App Cache (on the device with the app): Since you mentioned the app, clearing its cache can help. On Windows, since you're using WebKit, if this is a browser-based app, try clearing your browser’s cache and cookies:
- Go to your browser settings > Privacy & Security > Clear browsing data > select cache and cookies > Clear now.

4. Check for Updates: Make sure both app and any browser you use on your laptop are updated to the latest version.

5. Test Sending Messages: After these steps, type a new message to see if it appears correctly on both devices.

6. Re-login: Sometimes, a fresh login session helps. Log out from both devices and log in again.

If after these steps the messages still don’t appear, there might be a syncing issue on the server side or a specific account problem.

Would you be able to tell me what app version you're running? Also, do the messages you send seem to disappear immediately, or do they appear briefly and then vanish?

We can take it from there once I have a bit more detail!