Clicking element has no effect

I am transferring a test suite that was written for Selenium IDE.

The test did a simple action: clicked on element with id=insert_text:

which caused black boxes to appear, signalizing places where the item could be inserted:

As mentioned, this test worked well on Selenium IDE, but when I tried to run it on Katalon Recorder, nothing happens, the black boxes do not appear. The line with the command:

click | id=insert_text

is highlighted in green, so no error occurred, as far as I know. I tried to use clickAndWait with no effect. Maybe this is something that was not yet implemented?

Any help would be greatly appreciated.