Memory issue with grid

Dear Sir,

I find that when i open a window and open to a page which load a grid, then when i repeat this process for several times, and the memory keep claims up in IE11, any help on this?

attached pls find the sample to illustrate the behavior. The main.htm only has a link to open the popup, and the frame.htm is the content.

More information is that, if i did not add the row, the memory did not claim up, and i have already call destructor before close window

Any suggestion on this?
Main.zip (4.25 KB)

Unfortunately the issue cannot be reproduced locally with the latest version of dhtmlxsuite.
Please, try to update your dhtmlxsuite.

Dear Sir,

I have tried the latest version 4.12 and found the issue still exists in IE11
attached pls find the adjusted version in order to fit with 4.12 which remove some function

also please find the screen cap video here to illustrate the issue
[url]- YouTube
Main.zip (4.27 KB)

Unfortunately I cannot reproduce the same leakage locally.
Memory clears dynamically for me.
Please, refer to the following screen:
screencast.com/t/kuiV8EoGnUhK