Sorry I missed this reply. I don't monitor this account as much as I should, I guess. I was actually one of the first witnesses to produce on 0.19.10. The reason I switched back to the previous version is mentioned in the release notes of 0.19.11. I found and reported a bug which was causing me to miss blocks. I was ready to compile in the fix, but with the last week+ of traveling I was doing, I decided to wait until a full release was issued. I was one of the first witnesses to run 0.19.11 on my seed to check stability and then upgrade my producing witness to it. My backup is now on 0.19.6 in case an issue comes up and I have to downgrade again, but so far today it seems to be running well on 0.19.11.