Reposting again for whose having problems with Mynxt.info wallet. Please also note, that Supernet lite client can be installed even on usb stick and it don't need to download a blockchain.
Mynxt.info has some problems with displaying ardr assets for people. It will be fixed soon. To chack balance of the ardor asset in your account, please go to
www.nxtportal.org, search for your account id and check the ardr balance. Don't worry, all accounts and balances are on Nxt blockchain.
Please also try official NRS client from
https://nxtforum.org/nrs-releases/nrs-v1-10-3/ (it will download complete blockchain in the background, while you can fully control your account during it) or Supernet Lite client from
www.supernet.org (it don't need blockchain download).
How to retrieve passphrase of your account at mynxt.info:
1 clear cookies (All. Or better selectively: browser settings ... search for "cookies" ... all cookies and site data ... mynxt ... delete)
2 log into mynxt.info
3 dashboard ... settings ... security
4 "download wallet backup"
5 WalletViewer
https://github.com/mynxt-info/WalletViewer/releases --> v1.4 for windows
6 use "master pw" as passphrase to decrypt the 'wallet.json.aes' file.
7 copy password (68 chars 400 bits in my case), paste/import into downloaded client
Done. Hope that helps.
For live support, please join NXTchat slack, invitation at
https://nxtchat.herokuapp.com/