Can you help me with cloning columns?

Unfortunately not - you have so many components and blocks in your app that it’s simply not feasible for one of use to check through everything.

What I would recommend you do is create a sample project, called “cloning columns” and use just the blocks that you think are causing the issue.

If this is the case then send us the sample and we can dedicate resources to diagnosing/fixing the root cause.

If your sample app doesn’t crash, then you will know that cloning columns isn’t the issue in your project and you will be able to narrow down the search this way.