Silent payments sync issues: BTC in the void

[r3nor]

Describe the bug

Silent Payments seem more like an alpha feature than a tested feature for release. These almost never sync, sync hangs forever at the first block most times, and when they sync it seems to not detect all payments correctly.

I have a wallet where I received a silent payment. At first, it was detected after trying the sync feature a dozen times, one of the times it clicked and synced so the payment appeared (note there are 5 TX, the number 1 is the one recevied via SilentPayments (amounts and timestamps have been redacted from the images):

Then, after a while, I can't send any BTC to anyone, since an error message appears saying Exception: Cannot find private key. This happens when I try to send any amount of BTC to any BTC address:

Now my wallet is totally locked, I can't use my BTC at all. After many attemtps to send, I decided to install Cake Wallet on destkop via Flatpak and reimport the wallet, I did it and the non-SilentPayments BTC appeared, but the ones received via SP address do not appear (note TX number 1 is not there, and of course the status of the wallet is Synchronized with the SP scanning finished too):

I assumed it was because it needs dedicated scanning of SP transactions. I know the exact block where I received the TX so I scan one block (since scanning all blocks is very, very slow). It scans and nothing appears. I try again, like 10 times. Nothing.

Ok, so I try to scan from 10 blocks before the TX was received until now. I wait for like an hour for around 3000 blocks to sync with SilentPayments. Nothing.

So it seems like I lost some payment in the void, which I obiously need and want to recover at all cost.

Expected behavior

Silent Payments sync correctly and appear.

Platform:

• OS: Android 14 (GrapheneOS) // Fedora Linux (Flatpak version)
• Device: Pixel 8 Pro // Average Laptop
• Cake Wallet Version: 4.1.19 // 1.9.0

[r3nor]

hello? anyone can provide support?

[rafael-xmr]

@r3nor please try scanning again we updated the servers, and if it works please let us know if you still face private key not found when trying to spend