Verify TextNotPresent fails

i have some problem in my testcases

in my script :

WebUI.selectOptionByIndex( findTestObject('Object Repository/LenderSearch/select_SearchLenderType'), '1', FailureHandling.CONTINUE_ON_FAILURE)
WebUI.verifyTextPresent('individual', true)
WebUI.verifyTextNotPresent('institutional', false, FailureHandling.STOP_ON_FAILURE)

i have index like this :
0 = all
1 = individual
2 = institutional

i have select index “1” that mean i selected individual and institutional shouldn’t present but when i’ve verified the data, the application was run true institutional isn’t present like this :

but why katalon said if institutional still present, and this make false alarm on my test


Screen Shot 2018-04-09 at 11.48.07 AM.png

Screen Shot 2018-04-09 at 12.07.51 PM.png

Hello, try to chenge it to WebUI.verifyTextNotVisible('institutional', false, FailureHandling.STOP_ON_FAILURE)The text could be present but is not visible.