Listbox callback misfires: after double-click, SelectionType='open' persists and Enter/Arrow keys wrongly trigger plot actions.

I am using a classic uicontrol('Style','listbox')–based GUI (not App Designer) that supports:

• Double-click → plot selected parameter
• Enter key → plot
• Arrow keys → only change selection
• Typed letters → incremental search

This behavior worked correctly in older MATLAB versions (up to R2024a), but in R2025a/b I see the following issue:Problem

After a double-click, the listbox callback is triggered again on the next keyboard event, and

SelectionType is still reported as 'open'.

Because of this:

• Arrow ↑/↓ after double-click plots again (unexpected)
• Enter sometimes plots twice
• It looks like 'open' “sticks” for one extra callback even though no mouse click occurred

Example callback pattern (simplified)

if isKeyEvent

if strcmp(eventData.Key,'return')

plot(...)

end

else

if strcmp(get(gcf,'SelectionType'),'open')

plot(...)

end

end

This logic still works in older MATLAB versions but produces incorrect behavior in R2025a/b due to the lingering 'open' state.Questions

1. Is this a known issue or expected behavior?
2. Is there a reliable way to detect a true double-click on a listbox in newer MATLAB versions?
3. Should this be reported as a bug?

Any advice or workarounds would be appreciated.