Hi there Myipadgk,
To clarify, does restarting your devices help? It may seem like a simple step, but it can sometimes help resolve unexpected issues.
If needed this the steps below may help:
"How to restart your iPhone X, 11, 12, 13, or later
- Press and hold either volume button and the side button until the power-off slider appears.
- Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.
- To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo."
Those steps are from this article: Restart your iPhone - Apple Support If you don't have an iPhone listed for the steps, additional steps for restarting other iPhone devices can be found in the same article.
And if needed, the steps below show how to restart an iPad:
"How to restart an iPad without a Home button
- Press and hold either volume button and the top button until the power off slider appears.
- Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.
- To turn your device back on, press and hold the top button until you see the Apple logo."
Those steps, and steps for how to restart an iPad with a Home button, can be found here: Restart your iPad - Apple Support
Also, do events created on the iCloud website show on your Windows device without any issues? Here is the link: iCloud This helps show if the events are at least syncing to iCloud and not reaching your Windows device or not.
Take care!