type test script and Following these step..

1) set variable name
2) select variable type CLOB
3) insert Value using [...](Large data editor) button
4) execute test script
-> no row returns
5) click [...](Large data editor) button
6) no contents displayed..

please patch this bug..

You cannot assign an input value to a CLOB. The actual bug is that you can provide a value in the Large Data Editor (we'll fix this).

You should use a Temporary CLOB instead.