Lost my bitcoin since the update of blockstream

Hi, thank you in advance for your help.
I bought bitcoin when it was green wallet at the time, i just took a photo of my qr code and that's it. Then green wallet ended, and it became blockstream, so i downloaded the app last year, I scanned my qr code, I think i needed to add my pin or something, and my bitcoin appeared. I'm never checking tbh. I just noticed that now blockstream app updated again (or in between i changed of iphone idk if it's even connected) and I tried to restore my wallet, by scanning the qr code, or addind the 27 words, it does connect to it but it shows that i have no bitcoin, and no transaction. But last year when i downloaded blockstream at first, it was showing all my transactions.
Did i lose my bitcoin for ever?

thank you very much for your help, and sorry being such a noob.