Errors not propagated when using frame threads

https://0x0.st/zTRO.ivf

$ dav1d -i zTRO.ivf --muxer null -o -
dav1d 0.3.0 - by VideoLAN
Decoded 1/160 frames (0.6%) - 7.97/29.97 fps (0.27x)
Decoded 2/160 frames (1.2%) - 7.70/29.97 fps (0.26x)
Decoded 3/160 frames (1.9%) - 8.04/29.97 fps (0.27x)
Decoded 4/160 frames (2.5%) - 7.91/29.97 fps (0.26x)
Decoded 5/160 frames (3.1%) - 7.80/29.97 fps (0.26x)
Decoded 6/160 frames (3.8%) - 7.59/29.97 fps (0.25x)
Decoded 7/160 frames (4.4%) - 7.48/29.97 fps (0.25x)
Decoded 8/160 frames (5.0%) - 7.36/29.97 fps (0.25x)
Decoded 9/160 frames (5.6%) - 7.31/29.97 fps (0.24x)
Decoded 10/160 frames (6.2%) - 7.20/29.97 fps (0.24x)
Decoded 11/160 frames (6.9%) - 7.16/29.97 fps (0.24x)
Decoded 12/160 frames (7.5%) - 7.15/29.97 fps (0.24x)
Decoded 13/160 frames (8.1%) - 7.09/29.97 fps (0.24x)
Decoded 14/160 frames (8.8%) - 7.04/29.97 fps (0.24x)
Decoded 15/160 frames (9.4%) - 7.05/29.97 fps (0.24x)
Decoded 16/160 frames (10.0%) - 7.03/29.97 fps (0.23x)
Decoded 17/160 frames (10.6%) - 7.02/29.97 fps (0.23x)
Decoded 18/160 frames (11.2%) - 6.83/29.97 fps (0.23x)
Decoded 19/160 frames (11.9%) - 6.83/29.97 fps (0.23x)
Decoded 20/160 frames (12.5%) - 6.81/29.97 fps (0.23x)
Decoded 21/160 frames (13.1%) - 6.82/29.97 fps (0.23x)
Decoded 22/160 frames (13.8%) - 6.84/29.97 fps (0.23x)
Decoded 23/160 frames (14.4%) - 6.85/29.97 fps (0.23x)
Decoded 24/160 frames (15.0%) - 6.83/29.97 fps (0.23x)
Decoded 25/160 frames (15.6%) - 6.80/29.97 fps (0.23x)
Decoded 26/160 frames (16.2%) - 6.77/29.97 fps (0.23x)
Decoded 27/160 frames (16.9%) - 6.75/29.97 fps (0.23x)
Decoded 28/160 frames (17.5%) - 6.74/29.97 fps (0.22x)
Decoded 29/160 frames (18.1%) - 6.74/29.97 fps (0.22x)
Decoded 30/160 frames (18.8%) - 6.74/29.97 fps (0.23x)
Decoded 31/160 frames (19.4%) - 6.74/29.97 fps (0.22x)
Decoded 32/160 frames (20.0%) - 6.75/29.97 fps (0.23x)
Decoded 33/160 frames (20.6%) - 6.77/29.97 fps (0.23x)
Decoded 34/160 frames (21.2%) - 6.76/29.97 fps (0.23x)
Decoded 35/160 frames (21.9%) - 6.69/29.97 fps (0.22x)
Error decoding frame: Invalid argument

$ dav1d --framethreads 4 -i zTRO.ivf --muxer null -o -
dav1d 0.3.0 - by VideoLAN
Decoded 1/160 frames (0.6%) - 2.64/29.97 fps (0.09x)
Decoded 2/160 frames (1.2%) - 4.38/29.97 fps (0.15x)
Decoded 3/160 frames (1.9%) - 6.07/29.97 fps (0.20x)
Decoded 4/160 frames (2.5%) - 6.90/29.97 fps (0.23x)
Decoded 5/160 frames (3.1%) - 7.85/29.97 fps (0.26x)
Decoded 6/160 frames (3.8%) - 8.35/29.97 fps (0.28x)
Decoded 7/160 frames (4.4%) - 8.98/29.97 fps (0.30x)
Decoded 8/160 frames (5.0%) - 9.56/29.97 fps (0.32x)
Decoded 9/160 frames (5.6%) - 9.92/29.97 fps (0.33x)
Decoded 10/160 frames (6.2%) - 10.33/29.97 fps (0.34x)
Decoded 11/160 frames (6.9%) - 10.54/29.97 fps (0.35x)
Decoded 12/160 frames (7.5%) - 10.90/29.97 fps (0.36x)
Decoded 13/160 frames (8.1%) - 11.01/29.97 fps (0.37x)
Decoded 14/160 frames (8.8%) - 11.21/29.97 fps (0.37x)
Decoded 15/160 frames (9.4%) - 11.41/29.97 fps (0.38x)
Decoded 16/160 frames (10.0%) - 11.35/29.97 fps (0.38x)
Decoded 17/160 frames (10.6%) - 11.54/29.97 fps (0.39x)
Decoded 18/160 frames (11.2%) - 11.85/29.97 fps (0.40x)
Decoded 19/160 frames (11.9%) - 12.38/29.97 fps (0.41x)
Decoded 20/160 frames (12.5%) - 12.40/29.97 fps (0.41x)
Decoded 21/160 frames (13.1%) - 12.36/29.97 fps (0.41x)
Decoded 22/160 frames (13.8%) - 12.37/29.97 fps (0.41x)
Decoded 23/160 frames (14.4%) - 12.49/29.97 fps (0.42x)
Decoded 24/160 frames (15.0%) - 12.40/29.97 fps (0.41x)
Decoded 25/160 frames (15.6%) - 12.35/29.97 fps (0.41x)
Decoded 26/160 frames (16.2%) - 12.28/29.97 fps (0.41x)
Decoded 27/160 frames (16.9%) - 12.36/29.97 fps (0.41x)
Decoded 28/160 frames (17.5%) - 12.42/29.97 fps (0.41x)
Decoded 29/160 frames (18.1%) - 12.45/29.97 fps (0.42x)
Decoded 30/160 frames (18.8%) - 12.57/29.97 fps (0.42x)
Decoded 31/160 frames (19.4%) - 12.60/29.97 fps (0.42x)
Decoded 32/160 frames (20.0%) - 12.64/29.97 fps (0.42x)
Decoded 33/160 frames (20.6%) - 12.62/29.97 fps (0.42x)
Decoded 34/160 frames (21.2%) - 12.47/29.97 fps (0.42x)
Decoded 35/160 frames (21.9%) - 12.40/29.97 fps (0.41x)

Same behavior can be seen with ffmpeg.

libaom also fails to decode the bitstream at around the same point.