Messages sent from Matrix gets delivered to Discord as JSONs with error

Describe the bug Several times, attempts of Matrix users to send images, on Discord side, images feels corruted, but when downloading that, I see it's a JSON with the next content:

{"errcode":"M_NOT_FOUND","error":"Not found"}

To Reproduce Just send at the Matrix side any pictures. And then see how they shown at Discord.

Expected behavior Images successfully delivered to Discord side and shown. If not as a native attachment, then just a link to local bridge's media storage (depending on config).

Screenshots/debug logs

Environment (please complete the following information):

• OS: RockyLinux 8
• Matterbridge version: 1.26.1-dev
• If self compiled: Re-ran the go build of latest state at the moment of issue creation c4157a4, problem is still here.

Additional context matterbridge.toml.zip