I was showing someone pier yesterday to a non computer user and it happened almost straight away (murphys law) This happened once more in the same image - it may be an anomaly

Keith

and inspecting that set the tally was 0, looking at the code for  
set it
seems quite difficult for this to occur since I do not see Pier doing
anything out of the ordinary. Is this a wider issue? Doing a grow and
fullCheck on it returned the tally to 6.


This is very strange, it never happened to me. You might want to file  
a bug to bugs.impara.de, if you can reproduce this problem.

Cheers,
Lukas