Hello,
I'm updating my strategies on the new Demo2.14.28.1/API 2.6.60.1 so I have no surprise when the Live platform will be online.
2 - Some strategy drawn chartObjects don't keep their coordinates after a restart of the platform : Some objects (or all of them, I haven't tested) do not save their coordinates after reboot when modified by a strategy.
But if you create a chartObject with a strategy and then drag it with the mouse then the chartObjects position will be kept after a reboot.
Please see the following screen capture that shows the impact of rebooting the platform :

Thanks
Best regards