Does anyone have trouble using InstantSend on 1.1.3.8c? I tried to send different amounts of 100, 1000, and even 10,000, but it keeps throwing an error saying that Instantsend only supports up to 500,000 BBP. Just noticed it after I upgraded from 1.1.2.4.
I did have a problem with it, yes - but I didn't report it as I couldn't reproduce it.
I could InstantSend 50,000 and 100,000 BBP, but not 200,000 or 300,00.
However, I think (not sure, but think) that the message was just misleading, and it was probably because I didn't have all of the funds sitting in the same address first. I was able to do instantsend of 100,000 -> 100,000 -> 50,000 -> 50,000 but that was the only way I could get it to work. Every other attempt threw the error you described.
The message is a bit ambigious.
To solve it, please go into coin control and manually select coin inputs less than 500,000, then re-send
.