I've submitted bugs in 2013 while was using PD9 and they're still there in PD11. I had to upgrade to PD11 because of lack of support for versions that are one or two years old and found PD11 to be a paid downgrade of functionality. I hope it was the last time I've ever paid anything for any Parallels product. Last PD11 update claims to be compatible with Ubuntu 16.04 while it, in fact, is not. It's fun that free VirtualBox is better at virtualization than a paid product from Parallels. I'm going to try Fusion when new OSX is being released because I don't think that PD11 will fully support it. They open sourced their tools to get better compatibility by getting contributions from everyone who has problems.
Hi EugeneA1, we are currently working on it with our Development. Unfortunately, we do not have ETA for the fix, it has been prioritized appropriately and you can track the changes in the product at this article.