That could be the case but it decoded the private key just fine until now. Sure, I can access my btc in a different manner but I like my nfc chip wallet

Just to clarify... you have your BIP38 (aka "encrypted" private key) stored on an NFC chip... and you used to be able to scan it using Mycelium, enter your passphrase and then Mycelium would decode it and then add the private key to your wallet?

I'd honestly never heard of that... I didn't realise Mycelium even had NFC reading functionality in it... I thought you could only import via QR Code or copy/paste WIF key.
Anyway, I just tried copy/pasting a BIP38 encrypted private key (created using bitaddress.org) into Mycelium using the "clipboard" method and it asked for the password... I entered the password and Mycelium says "Preparing decryption key..." and then just sits there doing sweet FA... so I'm guessing that's a bug in the newer version(s).

I have taken the liberty of creating an issue on the Mycelium Github:
https://github.com/mycelium-com/wallet-android/issues/532Feel free to add to it.