Additional category attribute groups are not being migrated

[PascalBrouwers]

Preconditions

1. Magento 1.9.3.10
2. Magento 2.3.5

Steps to reproduce

1. Have extra category attributes on a non-default attribute set in M1 database
2. Migrate data

Expected result

1. Would expect category attributes and their attribute groups to be migrated

Actual result

1. Error: Notice: Undefined offset: 18 in vendor/magento/data-migration-tool/src/Migration/Step/Eav/Data.php on line 498

Additional notes

In the code I can find nothing that category attribute groups are migrated, this only happens for product attributes.

[m2-assistant[bot]]

Hi @PascalBrouwers. Thank you for your report. To help us process this issue please make sure that you provided sufficient information.

Please, add a comment to assign the issue: @magento I am working on this

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