Do you know why I can’t move away the last 100 Sats from that created „Custodial Account“?

For example I added 1000 Sats on that Custodial Account when created. Then I only can send exactly 900 Sats from that account.

Tried it with different starting balances. Resulting always in 100 Sats left, that i could not send.

Get an error message saying that I don’t have enough balance. 🤔

Thanks for the great tutorial 👍