Hi,
My name is Gary an independent advisor and I would be happy to help you out with your concern,
As you've installed the servicing stack update for 1909, it is most likely that you've implemented the said components although you would still have the 1903 feature update. To apply the feature update of 1909 you'd either have to update through the settings app or by performing an in-place upgrade.
- Go to start menu and open settings with the gear icon
- Open Updates and security settings
- Choose Windows update
- Click on check for updates
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I would recommend a repair install/in-place upgrade to override and fix system components while setting the system to the latest version of windows 10
1. Open this link https://www.microsoft.com/en-us/software-downlo...
2. Select Download tool, and select Run. You need to be an administrator to run this tool.
3. On the License terms page, if you accept the license terms, select Accept.
4. On the What do you want to do? page, select Upgrade this PC now, and then select Next.
5. After downloading and installing, the tool will walk you through how to set up Windows 10 on your PC.
6. When Windows 10 is ready to install, you'll have an option to keep your personal files and apps, keep personal files, or to keep nothing during the upgrade
7. The process would take a while and may consist of multiple reboots. Make sure that there won't be interruption within the process to make sure that everything would sort everything out
Let me know how it goes. :)