Android AccessibilityService: AccessibilityNodeInfo.ACTION_SET_SELECTION not working properly with multiline fields in Browser apps

Question

I'm working on an app with intense usage of AccessibilityService. The app works great with other Android apps, I can use text selection properly.

The problem comes with multiline fields in browsers: when trying to perform the action AccessibilityNodeInfo.ACTION_SET_SELECTION, it results in a wrong selection.

Here's my example code snippet. It may not be functional, but it helps with stating the issue:

    override fun onAccessibilityEvent(event: AccessibilityEvent) {
        val nodeInfo = event.source
        if (AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED == event.eventType
            || (AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED == event.eventType
            && event.contentChangeTypes and AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT == AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT)) {
            nodeInfo?.text?.let {
                val arguments = Bundle()
                arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, 20)
                arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, 20)
                event.source.performAction(AccessibilityNodeInfo.ACTION_SET_SELECTION, arguments)
            }
        }
    }

As an example of what is happening, when in https://translate.google.com/, if you write:

selection is
not
working

and after writing this text you run the code, after performing the action the caret should be placed somewhere here:

selection is
not
work|ing

but instead, it is placed here:

sel|ection is
not
working

The problem seems to be related to endlines. Everything works great if you just write and select in a single line, but when using multiline, it's not working properly.

Any clue??? Did someone experience the same issue?