ordering ascending/descending sometime freeze the list when the filter is on

[smart]

I have a list with 1500 records. 3 or 4 columns are allowed for ordering. and advanced filtering is on.
When filter is clear, ordering is ok without a glitch.
When a column is filtered for a certain value, initial result of the list showed.
But if click on orderings on any column, the list started to freeze forever.
I tried debug mode, copied the sql and paste it in the phpmyadmin. No error.
Please let me know how to troubleshoot. Thanks.

 

[troester]

I assume your list is set to "ajaxfy".
Check in your browser console for JS errors.

 

[smart]

I assume your list is set to "ajaxfy".
Check in your browser console for JS errors.

Thanks Troester. I found the possible problem. In Browser's console, list.js error showed up. But I couldn't find which JS was causing it.
Later, I went into to one record which has a html data in "text area". I copied some web html code into that text area column.
That column is actually visible only on the form view not on the list view.
But after removing those html code from that record, the list doesn't freeze at all.
Is that possible?

PS. I remember I selected html code randomly from the html file saved on my PC and pasted onto that text area. I didn't use WYSIWYG editor for the html code. So the structure might not be correct; like some closing tag might be missing. That might trigger the js error and freeze the list completely.