I'm using ninjatrader for 2 years, but recently I got into this annoying problem when trying to copy paste some drawing objects like line or something it shows this error just after clicking ctrl+C - but this happen only on some objects, while other can be copied, and then it again doesn't work on this other, seems completely random. I of course restarted Ninjatrader not once, it is happening for a week or so. Any advice ?
Kind regards
Tomasz
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