Knowledge Base
Real, documented After Effects crashes and errors — each one pulled from an actual troubleshooting thread or error report, with the verbatim error text, the real cause, and the exact fix. This is a growing set; more are being added.
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Crash on startup ("Crash in progress")
AE closes immediately on launch, sometimes offering to save before quitting. After Effects error: Crash in progress. Last logged message was: <...>
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Application unable to start (0xc0000005)
After Effects error: The application was unable to start correctly (0xc0000005) — a Windows access-violation error on launch.
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Out of memory / Unable to allocate memory
Repeated Out of memory / Unable to allocate memory pop-ups during RAM preview or render; memory fills until AE crashes.
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GPU / Graphics Driver issue (black screen)
After Effects can't continue: encountered a GPU or Graphics Driver issue — the Composition panel goes black mid-session, reportedly more common on NVIDI…
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GPU Effects Error — "GPU is out of memory"
After Effects has encountered a failure related to GPU-enabled effects on this frame. This is likely because your GPU is out of memory.
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AE crashes partway through a render
AE closes unexpectedly partway through a render, with no specific error text.
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Output module failed (render write error)
After Effects error: Rendering error while writing to file ... An output module failed. The file may be damaged or corrupted. (-1610153464)
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Missing footage / media offline
After Effects warning: files are missing since you last saved this project. Color bars appear instead of footage; items show (Missing) in the Project pa…
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DynamicLinkManager crash on startup
AE crashes at launch with a crash log referencing <DynamicLink> ... dynamiclinkmanager.exe.
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Error 21::31 — "preferences file is not valid"
preferences file is not valid (21::31) on launch — usually follows an abrupt shutdown of AE.
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Error 17::17 — "zero denominator in ratio multiply"
After Effects error: zero denominator in ratio multiply ( 17 :: 17 ) — usually during preview/render, sometimes looping into an unrecoverable error storm.
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Cinema 4D version mismatch (PF_Cmd_SEQUENCE_SETUP)
This version of AE requires an installation of Cinema 4D R24 (24.111 or later) — appears on every launch, across AE 23–26.
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Element 3D — "failed to initialize OpenGL"
Element failed to initialize OpenGL. Please ensure your GPU drivers are up to date & that your GPU is compatible.
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Sapphire plugin crash / red screen
After Effects error: crash occurred while invoking effect plug-in (Sapphire) — AE crashes or shows a red screen adding/rendering a Sapphire effect.
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Magic Bullet Looks (MBL) shows "unlicensed"
The plugin overlay shows a license warning (unlicensed) even though it’s installed and was previously activated.