Scaling only plays back in timeline when another effect is active.

Hey, everyone!

Trying to apply a super simple scaling effect to a jpg on Premiere CC (most recent and updated version). For whatever reason, the scaling effect (and only the scaling effect) plays back in the timeline when another effect is present and active. For example - if I scale up any image to a certain percentage, then Premiere fails to show any changes when scrubbing through the timeline. When another effect is introduced (active, with keyframes) scaling can be viewed in the timeline. For instance, if the position effect is introduced and one parameter is bumped up one unit through the keyframes (from 3104.0 to 3105.0 in this case) all of a sudden the scaling appears in the playback. All other effects playback fine in the timeline when they're on their own or accompanied with other effects. So weird!

After export and subsequent viewing on Quicktime, the scaling effect (unaccompanied by any other active effect) appears to be working fine, but again, fails to playback when scrubbing through the project timeline within the working file in Premiere CC. I uninstalled and reinstalled. I played with memory settings and returned them to defaults. A colleague and I tested this on their computer and they had the same issue. We were able to fix it in the same manner described above (without uninstalling, reinstalling, memory tweaks, and whatever else I messed with).

I think it's safe to say that this might be a software bug and not a hardware/memory issue.

Thanks in advance and may you all have a happy and fulfilling 2019!