Thanks for your question and sending a sample file.
ODB++ expects the layer name for Top Components to be: comp_+_top
ODB++ expects the layer name for Bottom Components to be: comp_+_bot
Please rename the component layer and then export your ODB++. Here's a quick tutorial movie, https://numericalsoftware-update.s3.amazonaws.com/tutorials/2019-11-07_8-56-48_rename_comp_layers.mp4
Note: ODB++ format requires the above layer names for components. We will make sure that future updates of FAB 3000 automatically renames the component layer during ODB++ export.
Thanks again, and please let me know if you have any other questions.