broken frames in video

[korabelnikov]

each 10th frame is from wrong time
see screencast
https://drive.google.com/file/d/12u1Ypn7h1LkhKGrazxti35v8I9WFtEtD/view?usp=sharing

[korabelnikov]

eva_1 | [2019-12-17 14:57:21] "GET /media/1/1391.png HTTP/1.1" 200 2705135
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13910.png HTTP/1.1" 200 3918533
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13911.png HTTP/1.1" 200 3847736
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13912.png HTTP/1.1" 200 3970326
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13913.png HTTP/1.1" 200 3970317
eva_1 | [2019-12-17 14:57:21] "GET /annotation/1/ HTTP/1.1" 200 1503
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13915.png HTTP/1.1" 200 3885247
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13918.png HTTP/1.1" 200 3956293
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13914.png HTTP/1.1" 200 3961938
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13916.png HTTP/1.1" 200 3981130
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13919.png HTTP/1.1" 200 3850578
eva_1 | [2019-12-17 14:57:21] "GET /media/1/13917.png HTTP/1.1" 200 3974648
eva_1 | [2019-12-17 14:57:21] "GET /media/1/1392.png HTTP/1.1" 200 2718562

[korabelnikov]

maybe something wrong with text sorting here? or is only eva fork issue?