[gradsusr] Quitting GrADS with core dumped

[Zilore Mumba]

I am running Grads-2.2.0 on ubuntu 18.10. Grads runs without any problem.
When I issue the quit command, I get the following three lines:
GX Package Terminated
double free or corruption (fasttop)
Aborted (core dumped).

Iam wondering is this is normal, or there is something I should fix.
Thanks for any assistance.
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