SmartClient Trend not correct

Dear all, We have big problems with the trends of the smart client. Several people regularly tell us about errors in trends. Attached are 3 captures of the same trend. The first 2 on smartclient and the 3rd on the 800xA. On the 2nd of the smartclient by changing the scale, a rise in pressure disappears without reason ... Have you ever had this kind of problem? We were in version 2.2. I installed version 2.3 hoping that an update would fix the bug, but the problem persists. Have you ever had problems like this? Can you help me find a solution? Production managers can no longer trust what they see on the screen and this is very problematic.

thanks, Regards, Kevin