Not quite sure what you mean by the keystone reference, or could be a termination issue.
If you have a bad connection you can get port flapping when the connection speed changes between the different levels. The MikroTik ones will tell you if there is this the issue
On the patch panel, you don't terminate the individual wires into the punch down connector, you terminate into a standard RJ-45 connector and plug that into the back of the panel.
Haven't seen any errors relating to port flapping