Why Pro tiers sometimes queue

Quick answer: Two limits can make a task wait. Your account runs a set number of tasks at the same time, depending on your plan; anything beyond that waits and starts as soon as one finishes — on every tier. On top of that, the Qwen-Image 3.0 Pro tier accepts fewer requests per minute than the default Qwen tier, so at busy moments its sheets wait a little and the site resubmits them for you. A sheet that takes a minute longer than usual on Pro is waiting its turn, not stuck; give it a minute before doing anything.

Still from “Starfall Command”, an AI short drama generated end-to-end by SceneMixer (7 characters, 1 episode) — Sample: “Starfall Command” — Realistic HD, 1 episode, produced end-to-end by SceneMixer from the script · watch the episodes

Why a generation takes time covers the other reasons a task can wait.

The two limits

Tasks at once, per account. Your plan sets how many of your tasks run at the same time. Generate All on twenty sheets starts the first few and the rest wait; each starts when one finishes. This applies to every tier. Requests per minute on the Pro image tier. Qwen-Image 3.0 Pro accepts several times fewer requests per minute than Qwen-Image 3.0, which is why its sheets can wait where the default’s do not. None of this changes the price; a task that waited costs the same as one that started at once.

What the site does

What happens	What you see
Your plan’s number of tasks at once is reached	The extra tasks wait and start one by one
A Pro sheet lands beyond the minute’s limit	The card stays at generating a little longer
The site waits and resubmits, backing off a little each time	The task starts, usually within a minute
The limit is hit repeatedly at a busy hour	The task starts later than usual; still no extra charge
The service itself is saturated	“The generation service hit a temporary problem. You weren’t charged — feel free to try again.” — the site already tried again once

What you can do

Expect a big batch to trickle. Generate All starts a few at a time because of your plan’s limit; a higher plan runs more at once. Draft on the default tier. It accepts more requests per minute than Pro; move only the keepers to Pro, a few at a time. Give it a minute. A waiting task starts on its own; nothing you do in the meantime moves it forward.

How to tell a queue from a failure

A waiting task has no error message and its card keeps spinning. A failure names its cause — content check, upstream busy, invalid input — and its credits come back or are held until support checks it. If a card has been spinning for many minutes, refresh; if it is still spinning after that, write to support with the task number.

FAQ

Is a task that waited charged more?

No. It is charged once, on delivery, like any other. If it fails, the credits come back or are held until support checks it.

Does the default tier ever wait?

Yes, when your plan’s number of tasks at once is reached. It rarely hits the per-minute limit the way Pro does.

Does Generate All count as one task?

No; each sheet is its own task, so a large batch fills your plan’s tasks-at-once and, on Pro, the per-minute limit.

Should I generate it again while it waits?

No. A waiting task starts on its own; asking again does not move it forward.

Do video segments wait too?

They count towards the same tasks-at-once limit, and at busy hours a segment can also wait for capacity.

Draft on the default, upgrade in groups

Generate the cast on the default tier and move the keepers to Pro a few at a time.

Start a project

Updated September 27, 2026