FLV Videos stops buffering after 3:20

[iFadi]

ILIAS Version: v6.14
InteractiveVideo: 2.6.4
PHP 7.3.31-1~deb10u1

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We are having this issue with .flv videos, they stop to buffer after 3:20 and the browser console start showing the following errors:

flv.js@latest:9 [FLVDemuxer] > Invalid PrevTagSize 1788829189
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 23, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 44, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 165, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 215, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 24, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 246, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 212, skipped
flv.js@latest:9 [FLVDemuxer] > Unsupported tag type 165, skipped
flv.js@latest:9 [IOController] > 8136917 bytes unconsumed data remain when flush buffer, dropped

when we refresh the browser the video continue playing and then stops after 3:20 Minutes. Is this a known issue with flv videos? or maybe we should apply something like the "workaround patch with the Web Access Checker" for flv videos?

[gvollbach]

Hi @iFadi,
that sounds more like the flv video you use is broken, does this happen with all your flv videos or only with one or two? What happens if you convert these to an mp4 format? You should definitely apply the workaround patch?