Send Bug? Or QLink Bug?

Select multiple channels
Turn on Q link
Select a send on first selected channel
Sends correctly populate on rest of channels
Send level on last selected channel is 0db but minus infinity on rest of channels - shouldn’t they all be zero?
While Q link is enabled unable to adjust any other level except last selected level - shouldn’t any level adjust all selected?
Attempting to change any selected channel except last one does not work…
Turn off Q Link - reselect channels - turn on Q Link - problem disappears…

…is it a Send level memory effect?

On mine I don’t see the values you quote but if a level has been set previously on a channel that send regains that send level whilst the others (with no previously set value) are at 0.