Issue with multiple videos painted onto a single canvas - only shows the first video

[glenrobson]

UV version:

 [email protected]

I'm submitting a:

• bug report => please fork one of these codesandbox examples with a repro of your issue and include a link to it below
• feature request => please use the user stories repo
• support request => Please do not submit support requests here, use stackoverflow

Current behavior:
I am working with a Internet Archive item which is a 13min video which is split into 1 min segements. I have created a Manifest which paints all 13 videos onto a single canvas using the #t=0,60 notation. Currently the UV only shows the first video:

https://www.universalviewer.dev/#?xywh=&iiifManifestId=https%3A%2F%2Finternetarchive-iiif-issue-70.ux-fnf-misc.archive.org%2Fiiif%2F3%2FCSPAN3_20180217_164800_Poplar_Forest_Archaeology%2Fmanifest.json

Expected behavior:
Similar to the way the Opera cookbook recipe works it should show the timeline as 13mins and play the videos seamlessly together.

Steps to reproduce:
Following this link:
https://www.universalviewer.dev/#?xywh=&iiifManifestId=https%3A%2F%2Finternetarchive-iiif-issue-70.ux-fnf-misc.archive.org%2Fiiif%2F3%2FCSPAN3_20180217_164800_Poplar_Forest_Archaeology%2Fmanifest.json

Related code:

Other information:
This seems to affect all versions of the UV I've tested it with but strangly the UV does support the cookbook recipe which uses the same technique to paint multiple videos onto a single canvas.

[demiankatz]

@glenrobson, have you tried stripping down the problem manifest to just the essentials to see if you can narrow down whether other elements of the manifest are causing the bug? I notice that the Opera cookbook recipe has considerably fewer parts (i.e. no renderings/annotations), so I wonder if one of those things might be somehow causing the bug.