Filemaker Pro 11 breaks under OS X El Capitan

Hello -
Just a note to indicate that Seedcode Calendar 5.6 running under FM Pro 11 has serious display problems as of the El Capitan OS X upgrade.
Drag and drop for appointments is more or less broken, because the window blanks for the duration of the mouse-button press/drag and you have to guess where the appointment is landing. Once the mouse is released the Calendar reappears.
There are other less functionally important display anomalies, such as a brief flash of the screen when buttons are pressed (again the window blanking for the duration of the button-press), as well as oddities evident in the relationship table, layouts as they are being modified, etc.
I don't have access to newer versions so don't know how far forward these problems extend.
Just a note to indicate that Seedcode Calendar 5.6 running under FM Pro 11 has serious display problems as of the El Capitan OS X upgrade.
Drag and drop for appointments is more or less broken, because the window blanks for the duration of the mouse-button press/drag and you have to guess where the appointment is landing. Once the mouse is released the Calendar reappears.
There are other less functionally important display anomalies, such as a brief flash of the screen when buttons are pressed (again the window blanking for the duration of the button-press), as well as oddities evident in the relationship table, layouts as they are being modified, etc.
I don't have access to newer versions so don't know how far forward these problems extend.