SharpPlot extremely sluggish in APL v18.2

[KamakaniKing]

When using SharpPlot via the Chart Wizard in APL v18.2, SharpPlot responsiveness is extremely slow: up to 15 - 20 seconds for plot updates and chart setting changes. Same data plotted in APL v18.0 is very fast.
Also upon exiting the Chart Wizard in v18.2 and attempting to save the workspace, I get the following error:
Cannot perform operation when # is referenced by session namespace.
Reached via:
⎕SE.tip...THIS

I'm using the following code to generate 6 sine waves on a single graph (y1 vs. x):

      x←0,(⍳200)×○÷100
      n←⍳6
      y←0.3×1○(0.5×n)×⍤0 1⊣x
      y1←n+⍤0 1⊣y

Is anyone else having these issues with v18.2?

[Vince|Dyalog]

Hi KamakaniKing,

Thanks for reporting these issues.

The save issue due to "Cannot perform operation when # is referenced by session namespace" is logged as 12649.

I have logged the SharpPlot wizard slowness as 19908.

Regards,

Vince