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Please open Big.cc file attached in issue #194816. It takes rather long time before annotations actually appear in the editor and CPU is 100% busy with "Provider asynchronous-merger prosess" thread during that time. Also when editing the file the same thread becomes active again for another long run.
There was no activity on this issue for quite a long time. We apologize that the issue was not addressed so far due to lack of development resources. We might not have time in near future to fix this problem, so it is closed as WONTFIX. If the issue is still critical for you please do not hesitate to REOPEN it. Thank you for using our product and reporting bugs. We are really sorry that we were not able to fix this issue timely. Regards, CND team.