Quote from: ranochigo on Today at 02:50:52 PM

Just a little insight: I was interested in using my spare unused 2Pacs for some solomining. It was working with 0.19.1 but it broke after updating to 0.20.0 and I was looking at the code and figured out that this pull request was causing the problem[1]. If you want to mine with 0.21.0/0.20.X instead, then you'll probably have to either modify your mining client somehow to ignore that missing part in the scriptsig and compile it.

SoloMining with 0.19.1 is perfectly fine, if you don't want to complicate things.

[1] https://github.com/bitcoin/bitcoin/pull/17519

Thanks for the information. I read through that link but cannot figure out if this is a bug or intentional?

Do you know if 0.19.1 can be successfully dropped into an existing .bitcoin profile as to not have to download the whole blockchain again?