I noticed the same thing. I'm allmost sure this route pops up when starting & quiting the player. I posted my findings in reply to this post (neigbour table overflow)

Walter
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Reg:1934/Mk1:158-6Blue/Mk2:380-12Blue
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[email protected] ------------------------ Reg:1934/Mk1:158-Blue(sold)/Mk2:380-Amber(sold)/Mk2a:3273-Blue