Please bear in mind that, as this is a Terraform specialist forum, there may be relatively few people who have ever worked with DataBricks - I never have. If you can phrase your questions to avoid requiring existing knowledge of DataBricks, you will enjoy a larger pool of people who can help.
You should also read through Guide to asking for help in this forum - in particular, your questions will be far more likely to be able to be usefully answered if you:
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Show the relevant parts of your Terraform configuration files
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Show the full terraform commands run, and their output, demonstrating the problem