android: transfer to spending capped at 0 with on-chain balance

[piotr-iohk]

What happened?

On Android simulator, transfer to spending cannot proceed with amount greater than 0 sats.
Wallet shows on-chain balance (100000000 sats) and maxSendOnchainSats=99999890, but spending flow remains blocked at 0 for transfer-to-spending.

Expected behavior

If on-chain balance is available, transfer-to-spending should allow a positive spendable amount (subject to fees and LSP limits), not be effectively capped at 0.

Steps to Reproduce

1. Open Bitkit Android on regtest with funded on-chain wallet.
2. Go to transfer to spending flow.
3. Try to set amount greater than 0 sats.
4. Observe the flow does not allow spending amount > 0.

Logs / Screenshots / Recordings

Screen.Recording.2026-02-23.at.16.18.26.mov

2026-02-23-android-transfer-to-spending-max-zero-logs.zip

• Key log evidence:
  • Selected UTXOs have insufficient value. Have: 100000000sats, Need at least: 100001000sats
  • Balances in state ... "maxSendOnchainSats":99999890 ... "balanceInTransferToSpending":0

Bitkit Version

(reported from branch release/177-hotfix-update), also observed on master (v2.0.2 / v2.0.3)

Device / OS

Android simulator/emulator (exact model + API level TBD)

Reproducibility

Sometimes (<50%)

Additional context

• Environment appears regtest (log includes block height and regtest wallet paths).
• Reporter notes this does not seem related to the specific changes in release/177-hotfix-update.
• Also see: feat: peer cards with labels + use ldk-node from GH #800 (comment)