Uploads with Butler to existing channel do not update HTML embeds

[MH15]

Here's the project - https://mh15.itch.io/accad-gamemechanicslibrary

When I push I get this:

butler push Build\LateralMovement mh15/accad-gamemechanicslibrary:lateralmovement
∙ For channel `lateralmovement`: last build is 540708, downloading its signature
∙ Pushing 34.79 MiB (30 files, 5 dirs, 0 symlinks)
√ Re-used 24.20% of old, added 26.37 MiB fresh data
√ 9.27 MiB patch (73.36% savings)
∙ Build is now processing, should be up in a bit.

But the update does not appear on the page I've got the game embedded on. My workaround for now is to delete the channel and push again, but this defeats most of the appeal of Butler. Any help would be appreciated.