A screen says "Map unavailable"

The map is a single line of text on the screen and nothing else. What that message means, why it is the display and not the floor plan, and the one thing readers try that cannot help.

Updated 7 Sept 2026

Map unavailable is the map saying it cannot be drawn here. It is a statement about the display, never about the plan: the floor, the rooms and the bookings behind it are all fine, and the same design on a second screen draws normally. That is also why the rest of the design keeps playing around it — only the map’s own area is replaced.

Offision draws floors through WebGL 2. A display whose graphics stack cannot offer it gets the message instead of a dead, silent rectangle where the map should be.

The display's graphics are too old for WebGL 2

Most common

The commonest case is an older signage player or set-top box: the chip does OpenGL ES 2.0, the browser exposes WebGL 1, and there is no WebGL 2 to be had. Nothing on the Offision side changes that.

Confirm it by opening any page on that display’s own browser and reading what it reports for WebGL 2 — a screen that also fails on other 3D web content is answering the question for you.

The fix is the hardware. When pairing a replacement, the wizard’s Certified devices grid is the list Offision tests against, and each vendor’s guideline says which of its models is specified for a live floor plan rather than for still content. A map is redrawn continuously as rooms change, so it asks more of a player than a playlist of images does.

Open Signage devices

The device can do it, but its browser is not using the GPU

Common

A capable display can still report no WebGL 2 when the browser is not talking to its GPU at all — hardware acceleration switched off, the GPU on the browser’s own blocklist, or a container rendering in software. The map cannot tell that apart from old hardware, so it shows the same line.

The tell is that the same display draws the map after hardware acceleration is turned back on, or on a different browser on the same box. This is worth checking before anybody orders a screen: it looks exactly like a hardware limit and is not one.