You need BBE 3.0.0-rc1 to look at your BB logs from BF 3.3.0. This video shows how to download and add in to Chrome.
Cleanflight BBE: https://github.com/cleanflight/blackbox-log-viewer
Betaflight 3.3.0 – Getting Blackbox Explorer 3.0.0-RC1
You need BBE 3.0.0-rc1 to look at your BB logs from BF 3.3.0. This video shows how to download and add in to Chrome.
Cleanflight BBE: https://github.com/cleanflight/blackbox-log-viewer