Can't concatenate the single list fragment of videos

[Rm Beer]

VIDEOS:
​https://ptpb.pw/7N0K.xz - rename to comp.tar.xz

TEXT FILE cconct.txt:
file fr1b.mp4
file fr2.mp4
file fr3b.mp4
file fr4b.mp4
file fr5b.mp4
file fr6b.mp4
file fr7b.mp4
file fr8b.mp4
file fr9b.mp4

COMMAND:
ffmpeg -f concat -safe 0 -i cconct.txt caca.mp4

RESULT:
Something videos is cut in other different times, and fill the rest of times with the last frame.

COMMAND:
ffmpeg -i fr1b.mp4 -i fr2.mp4 -i fr3b.mp4 -i fr4b.mp4 -i fr5b.mp4 -i fr6b.mp4 -i fr7b.mp4 -i fr8b.mp4 -i fr9b.mp4 -filter_complex '[0:0] [0:0] [0:0] [0:0] [0:0] [0:0] [0:0] [0:0] [0:0] concat=n=9' caca.mp4

RESULT:
frame= 139 fps=0.0 q=29.0 size= 0kB time=00:00:02.86 bitrate= 0.1kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 335 times

frame= 298 fps=296 q=29.0 size= 0kB time=00:00:08.16 bitrate= 0.0kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1343 times

frame= 466 fps=308 q=29.0 size= 256kB time=00:00:13.76 bitrate= 152.4kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1319 times

frame= 631 fps=314 q=29.0 size= 256kB time=00:00:19.26 bitrate= 108.9kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1303 times

frame= 794 fps=316 q=29.0 size= 256kB time=00:00:24.70 bitrate= 84.9kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1311 times

frame= 958 fps=318 q=29.0 size= 512kB time=00:00:30.16 bitrate= 139.1kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1287 times

frame= 1119 fps=318 q=29.0 size= 512kB time=00:00:35.53 bitrate= 118.0kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1335 times

frame= 1286 fps=320 q=29.0 size= 512kB time=00:00:41.10 bitrate= 102.1kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1351 times

frame= 1455 fps=322 q=29.0 size= 768kB time=00:00:46.73 bitrate= 134.6kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 1327 times

frame= 1621 fps=322 q=29.0 size= 768kB time=00:00:52.26 bitrate= 120.4kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow, dropping.

Last message repeated 343 times

[out_0_0 @ 0x562579193980] 100 buffers queued in out_0_0, something may be wrong.
[out_0_0 @ 0x562579193980] 1000 buffers queued in out_0_0, something may be wrong.
More than 1000 frames duplicated

[Rm Beer]

COMMAND:
ffmpeg -i fr1b.mp4 -i fr2.mp4 -i fr3b.mp4 -i fr4b.mp4 -i fr5b.mp4 -i fr6b.mp4 -i fr7b.mp4 -i fr8b.mp4 -i fr9b.mp4 -lavfi concat=n=9 caca.mp4

RESULT:
[Parsed_concat_0 @ 0x556b58010100] Input link in5:v0 parameters (size 216x144, SAR 1:1) do not match the corresponding output link in0:v0 parameters (640x480, SAR 1:1)
[Parsed_concat_0 @ 0x556b58010100] Failed to configure output pad on Parsed_concat_0
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #8:0