Thank you for contacting us.
I tested your scenario. It seems like this is an issue that occurs when you use removeFromSuperview.
Thank you for pointing our attention to this issue. I also updated your Telerik points.
It is logged in our feedback portal and you can check its status here
You can use the contentView to fill the space. Please consider the code snippet below.
_autocompleteTextView.contentView.backgroundColor = [UIColor redColor];
I hope this helps. If you have more assistance, do not hesitate to contact us.
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