Instagram tag problem

Try deleting and installing it again. If not, ask the developer. It might be on their side. Have you tried restarting your iPhone yet?

Fadikhatoun wrote:

I have an iPhone 12 Pro Max, I can't tag people on my Instagram

And what did Instagram say when you asked them about their app?

https://help.instagram.com/370569449686414/?helpref=hc_fnav&bc[0]=Instagram%20Help&bc[1]=Troubleshooting%20and%20Login%20Help&bc[2]=Something%27s%20Not%20Working