I've observed the following:
In version 1.0.4.3-rc, I launched a logo by setting it as local in the configuration file as follows:
    <Logo>
		<LogoName>mosca tp</LogoName>
        <LogoUri>file:///D:/PLAYOUT/logo.htm</LogoUri>
        <LogoDelay>0</LogoDelay>
		<LogoMix>16</LogoMix>
		<AutoOn>**</AutoOn>
		<AutoOff>W_</AutoOff>
		<PlayLayer>5</PlayLayer>
    </Logo> 
And it worked correctly. This is the casparcg log.
[2025-10-26 14:43:09.942] [info]    Received message from 127.0.0.1: PLAY 1-5 [HTML] "file:///D:/PLAYOUT/logo.htm" MIX 16\r\n
Now, in version 1.0.26.45rc, I launch a logo or CG by setting it to the same value, and it gives a "not found" error, and no HTML appears in the log:
[2025-10-26 14:54:24.467] [info]    Received message from 127.0.0.1: LOADBG 1-1 "E://25-10-25 video.mp4"\r\n
[2025-10-26 14:54:24.467] [info]    Sent message to 127.0.0.1:202 STOP OK\r\n
[2025-10-26 14:54:24.467] [info]    Received message from 127.0.0.1:  PLAY 1-1\r\n
[2025-10-26 14:54:24.467] [info]    color[EMPTY] Initialized
[2025-10-26 14:54:24.468] [info]    Received message from 127.0.0.1: PLAY 1-6 "logo.htm" MIX 16\r\n
[2025-10-26 14:54:24.469] [info]    Sent message to 127.0.0.1:202 PLAY OK\r\n
[2025-10-26 14:54:24.469] [info]    color[EMPTY] Initialized
[2025-10-26 14:54:24.470] [info]    Sent message to 127.0.0.1:202 PLAY OK\r\n
[2025-10-26 14:54:24.470] [info]    Sent message to 127.0.0.1:202 LOADBG OK\r\n
[2025-10-26 14:54:24.470] [info]    ffmpeg[E://25-10-25 video.mp4|0/122665] Destroyed.
[2025-10-26 14:54:24.470] [info]    Sent message to 127.0.0.1:202 PLAY OK\r\n
[2025-10-26 14:54:24.477] [error]    File not found.
[2025-10-26 14:54:24.477] [info]    Sent message to 127.0.0.1:404 PLAY FAILED\r\n
I don't know if this is due to a bug or if I'm doing something wrong. Thanks.