You have the same OS version as my Roku Ultra and Roku 3. Everything I've written to you is about the newest OS update which is 14.5. My issue happened when my device asked me to update to the newest OS. To further clarify that your Roku is up to date, I'll compare with you what YouTube App version I have. Use the remote to move to the YouTube channel without entering it and press the star "*" key. My version of YouTube is 2.22b13.
When the Roku updates your channel apps in the background while either on screensaver or when it restarts, it won't show that it has updated on the update screen as that only changes if you manually update. Like you, I still have the 14.1 OS update on my Roku Ultra device. There is no OS vs 14.2 through 14.4. This updated for me on 12/19/24, which was near last Christmas. This is normal for Roku. The newest update is being delayed because of these update issues that error out and cause the Roku to show the home screen's wallpaper without the channels or menus. If this should happen to you in which the OS update screen comes up, but errors out, then my previous post should be helpful as this helped me get past that error on a similar device.
When I loaded YouTube on my Express Plus, I first saw the circle, which went away, and this was replaced by another circle that showed a percentage, which loaded until YouTube opened.
Now if I'm misunderstanding you and your apps aren't loading at all but continuously reloading then follow these steps below:
Go to the home screen, making sure it's not on screensaver, and unplugging the Roku for a few minutes should fix this.
But if you're having the same problem after the Roku restarts, it could be a network issue in which you need to turn off your router and modem and turn them back on.
If it's not a network issue, your Express may be experiencing a power issue. My Roku Express Plus acted all wonky when I had the USB device plugged into the TV. This device needs to be plugged into an outlet. It is possible that either your USB cord or USB plug has gone bad, so if you have a spare USB cord and USB plug, try to see if replacing the cord fixes this, and if not, see if replacing the plug fixes this, or both may need to be replaced. If you don't have a spare USB cord or plug, and you need to shop for this, make sure that you purchase the correct USB plug that fits the Roku device.
If that doesn't work, you can uninstall and reinstall the apps. I recommend that you search for the app before doing this, so that you can easily find it again in the recent search portion to re-install.
With the remote, select the app without entering it, press the star key, select "Remove App". Repeat these steps with the other app that's giving you issues. Then restart the Roku and then re-install the apps. If this isn't helpful, you can also try clearing the cache which restarts the Roku, which also may fix this. You can also use this if that update pops up and errors out and shows that blank screen as this will restart your Roku and bring you back to the home screen.
Press the home button to make sure you're at the home screen. Then wait a moment.
Press Home button five times.
Press Up button 1x "^"
Press Rewind 2x "<<"
Press Fast Forward 2x ">>"
Your Roku will cycle the menu 3x and then freeze and wonโt respond to the remote.
After a short while (be patient), your Roku will reboot.
Hopefully, one of these solutions fix your issue. If this isn't helpful, and I can think of some other troubleshooting steps you can take, I'll put those in either this post with an "update" or a new post when I'm able to.
Update
Sorry, I forgot to mention this since I was tired when writing this post.
Check to see if your Roku is on your network (or the right network):
Go to Settings/Network/About
See if your Roku is connected to the Network and if your Internet download speed is Good. It doesn't have to be excellent, but it shouldn't be poor.
Then go to Settings/Network/Check connection and press OK on the remote and see if that's successful
If it's not successful then go to Settings/Network/Setup connection/Wireless and see if you're on the right wireless network.
If you're still having issues, you could try to reset your Network connection on your Roku but this erases your wireless network settings, meaning you would have to re-enter your WiFi password:
Settings/System/Advanced system settings/Network connection reset/Reset connection
You'll also notice on this Advanced system settings menu that you can do a factory reset if nothing else works. This will log your Roku out of your account, so you would need to log it back in and then setup your network by entering your WiFi password, readjust all your settings, and reposition your channel apps on your home screen.