Dec 07, 2017 - 08:06 AM
If an animation contains many hundreds or thousands of shapes, then the issue may also be related to memory.
One way around this type of issue is to select the group of objects and then go to the Options menu and choose "Convert to Image". This will reduce the complexity of the animation and save some memory. The downside of this method is you can no longer edit the grouped objects individually.
There is also an update to Frames 6, you may want to try updating to the most current version here.
If you continue to have problems, please open a technical support ticket and we can gather some additional information from you.