submit_block (external blob): daemon returned error: unknown error
I am new to this project so please forgive me if I am asking things that are obvious. I was not able to use the pre-compiled binaries provided as they segfault so instead I built the project as per the build instructions. It seems to be working fine, but I am getting the error `submit_block (external blob): daemon returned error: unknown error` randomly, and seeing it happen at the same time it found a block has me concerned that I will have lost out on the reward for this.

![2022-08-18-134633_911x131_scrot](https://user-images.githubusercontent.com/351151/185290450-5cb1e40a-c1e4-4826-99b6-23da9a5e184a.png)

Is this something I should be concerned about? and if so, what do I need to do in order to correct it?
