missing link (component↔compound) for 县/悬

In the CHARS tab for 悬, I would expect to see 县 as a component; and of course reciprocally I would expect to see 悬 as a compound for 县. However this is not the case in Pleco.
I think there are several other cases of this but I don't have any other examples handy.
This looks like a bug to me.
Apologies if this topic has already been raised elsewhere, I had a look but didn't see anything.
 
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