UBB.threads PHP Forum Software Community Forums Resources and Customizing How Do I? Content length being cropped

I know this is an older topic, But I run into the same issue which looks to me like a bug. When I enter HTML of a larger size, the board just cuts it and only saves the firt part. The preview is completele OK, but after saving, not all the HTML is being saved in the database.

Can you please make the HTML entering, "unlimited"?