A low-level exception occurred in: Adobe Player (Player:76)

Question

I run a PC with an i7-4xx processor @ 3.60 GHz and 16GB RAM. My graphics card is a Radeon R9 200 with 4GB of GDRR5 memory.
 
Everything worked fine until I downloaded Premiere Pro 14.1. 
 
Premiere Pro began to throw obscure playback errors during editing and I suspected the Mercury Playback Engine. For example, if I select GPU Acceleration for video rendering and playback (my normal setting), I immediately get "A low-level exception occurred in: Adobe Player (Player:76). 
 
MP4s on my timelines disappear and gold Media Pending blocks appear in the Program Panel instead. When I trim something on the timeline, the error says: "A low-level exception occurred in: Mercury Playback Engine GPU Acceleration (OpenCL)(Accelerated Renderer:2).
 
If I select the other option for video rendering and playback—Mercury Playback Engine Software Only—the MP4s on the timeline reappear and I can trim them, but it takes forever to export a one-hour MP4.
 
Any help will be much appreciated.
 
Any

hans-georgt78442163 · Accepted Answer

I had the same problem and I suspected a third party visual effect that I had downloaded. The provider of the effect sent me this message, saying this is the official Adobe-answer.

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