修正

src/core/particleConfig.ts

@@ -14,6 +14,7 @@ export function defaultConfig(): EmitterConfig {
       previewUrl: '/images/star.png',
       imageMode: 'fixed',
       sequencePlayback: 'loop-forward',
+      sequenceStart: 'first',
       sequenceFps: DEFAULT_SEQUENCE_FPS,
       sequenceFrames: [],
       weight: 100,
@@ -381,6 +382,7 @@ export function ensureEmitterConfig(config: EmitterConfig): EmitterConfig {
     else if (!['once-hide', 'once-hold', 'loop-forward', 'loop-reverse'].includes(resource.sequencePlayback)) {
       resource.sequencePlayback = 'loop-forward'
     }
+    if (resource.sequenceStart !== 'random') resource.sequenceStart = 'first'
     if (!Number.isFinite(resource.sequenceFps)) resource.sequenceFps = DEFAULT_SEQUENCE_FPS
     resource.sequenceFps = Math.min(120, Math.max(1, Number(resource.sequenceFps) || DEFAULT_SEQUENCE_FPS))
     if (!Array.isArray(resource.sequenceFrames)) resource.sequenceFrames = []