Drop Zones Freezing in FCPX with multiple 3rd party plugins

Question

I am running FCPX 10.0.6 and just noticed something. When using my Crumplepop Effects Generator plugin 'Split Screen' the applied clips in my split screens either freeze the length of the effect or only play intermittently.
Same thing is now happening in the drop zones of my MotionVFX templates. Even if I go back to an older project that was previously working fine, it now has issues. In one instance a template with 4 drops zones - the first plays fine but now the remaining 3 the dropped in clips are frozen.
I figured maybe a recent FCPX update caused this. Any ideas?

Answer 1

Thanks for the info.
Here is the reply I received from CrumplePop:
Sorry for the trouble with SplitScreen X! In Final Cut Pro 10.0.6 there is a brand new workflow for adding content to Drop Zones. This means there are a few new things to learn to use SplitScreen X in 10.0.6. Also there are a few bugs to watch out for. We have a new tutorial about using SplitScreen in 10.0.6 on our website here: http://www.crumplepop.com/final-cut-pro-tutorials/
Just incase you want to see written out steps I have included some below.  
Adding Content to SplitScreen X from the Event Library:
- Add the SplitScreen X generator you wish to use to the timeline.
- Move the playhead to the location you will want your clip to start on the timeline, usually this is the first frame of the SplitScreen X Generator.
- Once your playhead is set, click the image well for the Drop zone you wish to place your clip in.
- Then in the event browser move the cursor to the "in point" of the clip you want to place in SplitScreen X and click. After you have selected the frame you wish to be your inpoint, hit the "Apply clip" at the bottom of the viewer.
Adding Content to SplitScreen X from the Timeline.
- Add the SplitScreen X generator you wish to use to the timeline.
- Select the clips you wish to place into SplitScreen X and time them out on the timeline. 
- Highlight the first clip you wish to add into SplitScreen X and then right click and select "create compound clip." repeat this with the other clips that will be placed in SplitScreen X.
- Move the playhead to the location you want your compound clip to start in SplitScreen X on the timeline, usually this is the first frame of the SplitScreen X Generator.
- Once your playhead is set, click the image well for the Drop zone you wish to place your clip in.
- Then move the cursor to the first frame of the Compound Clip on the timeline and click. Repeat this process for all of the drop zones and clips then click "Apply Clip"
- Once the Compound Clips are all placed into SplitScreen X you can disable them by highlighting and pressing the "v" key.
- *Note* If you open up a Compound Clip that you placed in SplitScreen X you can make color correction changes or drag on effects and your changes will appear in the SplitScreen X Generator in real time!
SplitScreen X in 10.0.6 Known Issues:
- If you try to add a clip from the timeline before making it a Compound Clip it will not be timed properly in your SplitScreen X generator.
- Sometimes changes made to Compound Clips don't display properly in the first few frames of your SplitScreen X Generator. However, there is an easy fix. Try moving the starting point of the SplitScreen X Generator over just one frame, this should correct the issue. "