You guys need to delete the old customizer zip before you download the new one, and make sure you wipe data before you install v0.8.
Customizer worked fine for me without deleting the old one. Maybe it's an option you guys are selecting?
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Ditto for me. Not sure what people are doing wrong. Download ROM, Wipe Data, Install ROM, reboot, open customizer from notification bar, follow on screen instructions.
I've never had a bootloop or error in any LGB ROM install.