Hi @emile.hay , welcome to Bitmovin community and thanks for reaching out to us. The error shared above is most likely caused by a decoding issue in the codec pipeline in the browser.
It is possible that the streams have some encoding issue or incompatibility which causes this behaviour.
Can you please share some additional information about your streams and player that you are using?
There are a few things that you can do to confirm this.
Test with different players like Bitmovin player, Shaka, Dash.js/HLS.js etc. to check if the issue is happening for all player. If happening with all players, then it is related to streams itself.
Try using Bitmovin encoder for generating the streams(if not already used) and see if problem persists.
Check media internals in Chrome browser in dev tools. The events and messages in media tools section can shed some light on the issue. Please see below a screenshot of where to find media internals in dev tools.
If problem is found to happen only with Bitmovin player or Bitmovin encoded streams, then I will suggest to open a support ticket through your Bitmovin account to share more information about the test setup and test streams to allow our support team to take a deeper look into it.