Error message changed on second validation event

If i enter an incorrect value, the first pop-up message appears that i set. If then i correct it, and then again enter an incorrect value, the pop-up text message is another (looks like the one which is the default). This happens when i using the custom js validation function.

You mean like this: https://www.chronoengine.com/forums/posts/f3/t102843/tooltips-are-different-in-the-second-click.html

Yes, I have the same problem 😟 The solution was never found?

Not until now :-)