hs.HSMemoryUsed not working on Linux

[windracer]

Is this a known issue? (or maybe I'm doing something wrong)

When I try to use hs.HSMemoryUsed, it's returning nothing. Here's my sample script:

Sub Main(parm as object)

dim memString as String

hs.writelog("HSMemoryUsed", "before")
memString = hs.HSMemoryUsed
hs.writelog("HSMemoryUsed", "after")
hs.writelog("HSMemoryUsed", memString)

End Sub

And here's what shows up in the log:



I'm running HS 4.2.15.0 on Raspbian Buster.

[windracer]

Logged ticket HSCS-16097.