I’ve noticed with placing canvases on certain locations - for an example, a picture over a laptop monitor. Sometimes other players will see something different from the host. Usually to fix this, you can try pulling the canvas out just a little bit more and it’ll fix it for everyone. Can make it tricky though for designing homes since others may not see what you do.
A more frustrating example is a new issue I’ve encountered. I’m using a canvas on a table as a mousepad and every time I leave my home, the mousepad appears much lower than the table when re-entering - but only for other players. In order to fix it, I have to completely re-make the table under it for it to pop back up.
For reference I’m using a regular canvas (transparency) on a wooden bar table.
Can provide screenshots and further details if requested.