The 1.0.10 validator release included a networking change that was intended to be an improvement to reduce egress bandwidth but caused issues with the Consensus Group agreeing upon and electing a new group. This caused a longer election period than expected.
This change was quickly reverted in the 1.0.11 release but because several validators automatically upgraded using watchtower and other scripts, it took a few cycles before the currently elected group automatically updated.
The core developers will continue to monitor elections and block production.