MTU changed for wrong GATT session - warning on Windows BT LE

Sometimes when using BT LE on Windows with logging categories enabled
(QT_LOGGING_RULES=qt.bluetooth*=true) I see the warning message:

"qt.bluetooth.windows: Got MTU changed event for wrong GattSession."

Please find the application I used to reproduce it attached. It is a modified version of the lowenergyscanner example application that allows connecting to multiple LE perhipheral devices at the same time (service discovery is not enabled though).

It is not easy to reproduce but I've seen it happen several times during the course of some hours while using the application. The only suspicion I have is that it might be related to the remote device disconnecting the session. As an example of more whole logging:

qt.bluetooth: QLowEnergyControllerPrivate setting state to QLowEnergyController::UnconnectedState
=== Device::deviceDisconnected
qt.bluetooth.windows: QLowEnergyControllerPrivateWinRT::onMtuChange
qt.bluetooth.windows: mtu determined to be 23
qt.bluetooth.windows: QLowEnergyControllerPrivateWinRT::onMtuChange
qt.bluetooth.windows: Got MTU changed event for wrong GattSession.
qt.bluetooth.windows: Unregistering  0  value change tokens
qt.bluetooth.windows: QLowEnergyControllerPrivateWinRT::unregisterFromStatusChanges
qt.bluetooth.windows: QLowEnergyControllerPrivateWinRT::unregisterFromMtuChanges
Device::errorReceived