I am afraid that the provided information is not enough to completely understand the problem. Would you please share the markup of the tooltip declaration here and I will try to built up a test demo based on it? It will be best if you prepare a very simple page (no need for database, just a fake programmatic datasource) and post all its source code here or open a new support ticket and send a working demo there - this will ensure the fastest and most accurate resolution of the issue.
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