HelpTag always covered by mouse cursor

Hello. I searched over the forum and online, but not find a solution
I’m using a subclassed listbox I made some yeas ago and updating it
I used declares to manage tooltip, no more usable with cocoa
The simplest replacement test I made used CellTooltipAt, but the tooltip is covered by the mouse cursor, so you cannot read it (and it is ugly…)
Image example
Latest Xojo on OS X 10.12
Happens only to me? Any workaround? I just need to move the tooltip some pixels below the cursor
Many thanks

other way to show a tooltip text


Yep. That seems to be the way it works and is the main reason I, and so many others, created our own using a canvas.

Hello. Made some tests in past days
@Dale Arends : thanks for the suggestion, used this way in the past, but had some problems with Z-order of controls added at runtime; I consider this way my last option, please be patient
@Markus Rauch : thanks for the suggestion, but found a problem. I’m using Xojo 2019r3.1 (also tested 2019r3) and the code shows a tooltip in MacOs 10.10, 10.11 and 10.12, but show nothing in 10.13, 10.14 and 10.15. I’m ready to consider it a bug, could you please confirm that it works with you?
Many thanks to all if you have any suggestion

Ok, found a solution consulting Feedback app
Case 58354 - Tooltips don’t show on Mac apps run from an SMB volume
Many thanks to all