Universal Clipboard stopped working

Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and Apple Watch

Move seamlessly between your devices with Handoff, Universal Clipboard, iPhone Cellular Calls, SMS/MMS messaging, Instant Hotspot, Continuity Camera, AirDrop, Apple Pay, and Auto Unlock.

Click a Continuity feature below to learn how to set up and use it.

Universal Clipboard: Copy content such as text, images, photos, and videos on one Apple device, then paste the content on another Apple device.

Set up Universal Clipboard

Use Universal Clipboard with any Mac, iPhone, iPad, or iPod touch that meets the Continuity system requirements. It works when your devices are near each other and set up as follows:

• Each device is signed in to iCloud with the same Apple ID.
• Each device has Bluetooth turned on.
• Each device has Wi-Fi turned on.
• Each device has Handoff turned on.

Here's how to turn on Handoff on your devices:

• On your Mac: Choose Apple () menu > System Preferences, then click General. Select “Allow Handoff between this Mac and your iCloud devices.”
• On your iPhone, iPad, and iPod touch: Go to Settings > General > Handoff, then turn on Handoff.

Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and ...

https://support.apple.com/en-us/HT204681

I found this link on another support page, and it fixed the problem for me. Basically, turn off Bluetooth, Wifi, and hand off on both devices, wipe all bluetooth files in preferences on you Mac, restart both, and turn on Bluetooth, Wifi, and hand off on both devices. That's the first possible fix, and as far as I had to go to get it working.

https://www.igeeksblog.com/universal-clipboard-not-working-between-mac-and-iphone/

I have this problem too.

I'm having this problem as well. Worked fine yesterday. Upgraded to iOS 12/4(16G77), then it stopped working.

I had to sign out of iCloud on my phone (scary) and back in. That fixed it for me.