Something to try ...
A (possible) workaround is to use the MindTheGapps zip referenced on LineageOS Wiki - Google Apps. - No problems with that one and while it is older, all the apps will update eventually to the latest.
While I build my own off the suicide squirrel/steadfasterX's github repos, I found the openGapps were presenting problems when flashed after the the latest rom versions were installed. The MindTheGapps version linked above solved it for me as the openGapps versions, any of them from any date, would not complete the install process. It sounds like the problem resides in flashing openGapps with the latest rom versions when the OTA update option was added., i.e., it may not be necessary to reinstall the openGapps when it has been previously installed. I haven't confirmed it yet but it seems to be a real possibility.