The newest QT Wallet for BlackCoin is at time 1.2.5.2 from
https://github.com/CoinBlack/blackcoin ?
In the last time the wallet hangs more times at my Pi2, is this the wallet or the Pi? Anyone have the same problem?
I don't have a similar situation, but I use 1.2.5.2 for staking on testnet and Pi3, with a lot of coins. After some time I noticed that the wallet hangs and CPU goes up to 100%. I suspect this to be the high amount of UTXOs I have after staking for a long time.