Recorder docker error on export

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This error is an issue with FFmpeg 7. This will work:

-i "$INPUT_DIR%07d.$EXT"
-framerate $IN_FPS
-start_number $FRAMES-1
-i "$INPUT_DIR%07d.$EXT"
-filter_complex "
 [0]loop=$LAST_FRAME_SEC*$IN_FPS:size=1:start=$FRAMES[main1];
 [main1]scale=$WIDTH:$HEIGHT[main2];
 [main2]loop=1:size=1:start=0[main3];
 [main3]setpts=PTS-STARTPTS[main4];
 [main4]framerate=fps=$IN_FPS[main5];
 [1]split [first1][transition1];
 [transition1]scale=$WIDTH:$HEIGHT [transition2];
 [transition2]loop='if(gte($FIRST_FRAME_SEC, 1), 1*$IN_FPS, 0)':size=1:start=1[transition3];
 [transition3]setpts=PTS-STARTPTS[transition4];
 [transition4]framerate=fps=$IN_FPS[transition5];
 [transition5][main5]xfade=transition=smoothright:duration=0.5:offset=0[v1];
 [v1]setpts=PTS-STARTPTS[v2];
 [v2]trim=start_frame=1[v3];
 [first1]loop='if(gte($FIRST_FRAME_SEC, 1), ($FIRST_FRAME_SEC*$IN_FPS) - 0.5*$IN_FPS, $FIRST_FRAME_SEC*$IN_FPS)':size=1:start=1[preview1];
 [preview1]scale=$WIDTH:$HEIGHT[preview2];
 [preview2]setpts=PTS-STARTPTS[preview3];
 [preview3][v3] concat [final1];
 [final1] setpts=PTS-STARTPTS[final2];
 [final2] trim=start_frame=1
"
-c:v h264
-r $OUT_FPS
-pix_fmt yuv420p

See this thread Timelapse Export Failed - #16 by Reinold

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