This sounds very unusual ... is the UI update issue that you are seeing only apparent when using the Boris Title 3D product? Perhaps something else changed on the system which may be the root cause of the symptoms that you are reporting as it seems very odd to me that the system would exhibit this type of behavior by changing only the size of the project. Would you be open to working with one of our support guys to see if they can help you figure this out?
Please feel free to reach out to them by sending an email to firstname.lastname@example.org. One of out tech support guys would be happy to help you with this.