Known limitations

A single file can be at most 1 GB, across all asset types, including PSDs used in templates.

The platform accepts at most 500 asset uploads in any 60-minute window. Further uploads are blocked until the window passes.

A Working Files folder name can be 1 to 60 characters. A longer name fails without an error message.

In an open-text parameter, a value of 0 is ignored and treated as no value; predefined-value parameters are not affected. In an After Effects template, setting a default of 0 in the project produces the intended output for the empty case.

Text backgrounds have no padding setting, so text sits flush against the background. A non-breaking space adds spacing where a normal space would be trimmed.

Text-background centring uses the font’s line height rather than the pixel height, so vertical centring can appear off.

The renderer does not substitute a fallback font for missing characters, so a font must contain a glyph for every character used. Work with fonts covers checking a font’s glyph coverage.

Fonts must be TrueType (.ttf), OpenType (.otf), or WOFF (.woff) files; WOFF2 (.woff2) works in Template Builder banner templates only. TrueType Collection (.ttc) files are not supported.

Template Builder supports static font files only; convert a variable font to static instances before you upload it.

Image sequences are not supported; a sequence must be rendered to a supported video file before use.

An .aepx (XML) project is not supported; the .aep format is required.

The Cinema 4D renderer is not supported; Classic 3D is supported.

Right-to-left text does not support the extension’s built-in layer scaling.

Performance drops as a template grows; the guideline is around 60 dynamic settings per template, counting parameters, layers, scenes, and outputs combined. Conditional outputs have the largest effect.

An After Effects template generates up to 200 previews automatically; generating more previews is an admin task. The limit applies per template, not per combination of values. Template Builder previews are real-time and are not subject to this.

In Chromium-based browsers, a very large image cannot be moved or resized in the editor. This is an upstream browser limitation.

A batch download ZIP can fail to open when the generated filenames exceed about 260 characters. A shorter Download naming scheme keeps filenames within the limit.

Keep images and video at 4K (3840 × 2160) or less. In an Extension for After Effects template, a larger file inside the project slows rendering. In a field where you upload a file, mostly in Template Builder templates, a larger file can make the render fail. Improve output quality covers resizing an asset that’s too large.

HEVC (H.265) video is not supported. For compressed video, MP4 (H.264) is the safest choice.

MP4 output cannot guarantee a minimum bitrate or file size; ProRes can.

A draft or test template that has never been published is deleted permanently and cannot be recovered. A template that has been published can be recovered after deletion.