Timeline Cards: Every Icon and What It Means

Quick answer: Every segment of the episode is a card on the bottom timeline, in order. Each card shows a thumbnail once there is video, the segment’s length in seconds, a status (Pending, Generating, Done, Failed), and the price the generate button would charge — or Free. A card that says over cap is longer than the selected tier allows. Click a card to select the segment; its menu holds Insert segment after and Delete segment. At the end of the row: Composite Episode.

Still from “Crimson Vow”, an AI short drama generated end-to-end by SceneMixer (4 characters, 1 episode) — Sample: “Crimson Vow” — Realistic HD, 1 episode, produced end-to-end by SceneMixer from the script · watch the episodes

Open a finished episode and hover the cards on its timeline.

Thumbnail and number

The card’s number is the segment’s place in the episode; it shifts when you insert or delete. The thumbnail is a frame from the active version of the segment’s video; a card without video shows no thumbnail.

The episode timeline: every segment as a card with its thumbnail and duration — Thumbnail, length, status, price: every card tells you where that segment stands.

Seconds

The segment’s length: the sum of its shots. Change the shots and the number changes. Shot seconds.

Status

Pending: no video yet. Waiting: behind your other jobs. Generating: running, with the usual time in the preview pane. Done: video delivered. Failed: read the message in the preview pane. Every status.

The price tag, and Free

What generating this segment would cost right now: its seconds times the selected tier’s per-second rate. Change tier and every tag changes. Free means this segment is covered by a free allowance. Tiers.

over cap

The segment is longer than the selected tier allows; generating is refused until you shorten it, split it, or pick a tier with a higher cap. Segment length.

Versions

A segment that has been generated more than once shows how many versions it has. Open Version History in the preview pane to switch; the thumbnail follows the active one. Versions.

The card menu

Insert segment after adds a blank segment behind this one. Delete segment removes it with its video and versions, after a confirmation; it is refused while the video generates and on the last segment. Inserting and deleting.

No Stop on a clip

A segment that is generating has no Stop: the clip runs to the end and lands as a new version, which you can keep or ignore. What can be stopped.

The end of the row

Composite Episode, available when every card is Done; until then its tooltip counts the remaining segments. Composite History lists the files you have made. Compositing.

On the card	Means
Number	Position in the episode
Thumbnail	A frame of the active version
Seconds	Sum of the segment’s shots
Pending / Waiting / Generating / Done / Failed	Where the video stands
Price tag	Cost to generate now, at the selected tier
Free	Covered by a free allowance
over cap	Longer than the tier allows
Version count	How many takes exist
Insert segment after / Delete segment	The card menu

FAQ

Why did the price on every card change?

You changed the tier in the model picker. Tags follow the selected tier's per-second rate.

What does over cap mean?

The segment is longer than the selected tier allows. Shorten, split, or change tier.

Why does a card say Free?

A free allowance covers that segment.

Why is there no thumbnail?

No video has been generated for that segment yet.

Where is the delete button?

In the card's menu: Delete segment. It is refused while the video generates and on the last segment.

Read the row before you shoot

Seconds, price, status: the timeline tells you what the episode will cost and where it stands.

Open the editor

Updated September 27, 2026