Map background is acting as token

This is probably a common issue. It's driving me nuts. I'm on map and background layer, but the background comes in tiny and seems to be acting as a token. The last map did not do this. Willing to answer questions and give screenshots if needed.

It depends on where the map is coming from.  A while back, there was a change and Roll20 asked marketplace artists to include certain metadata in their images so that they would pull in at the correct size and aspect ratio.  Images on the marketplace from before that time and images you have uploaded, probably won't.  In that case, the quickest way to resize an image is to simply right click on the image and set dimensions through the advanced menu.  You can set the overall pixel size (often easiest for something you uploaded yourself) or the number of grid units if it has a built in grid. If you don't know what the size is supposed to be, then you may need to grab and drag edges or corners until you get the size that looks right.

All images in Roll20 are technically tokens. You can resize the map image by right clicking on it and selecting "set dimensions" from the "advanced" option in the menu that will pop up. What dimensions the image defaults to when you drag it onto the map depends on how you're bringing it into the vtt. Dragging it in from your computer (uploading). This method should drop it in at full size regardless of which map layer you are on. Dragging it in from your library uploads If dragged onto the map layer, this method will put it on the vtt at the appropriate aspect ratio, but with no side being larger than 3 squares. If dragged onto any other layer, it will be placed into a single square. Dragging an image in from the Roll20 marketplace search in game. This will depend on what meta data the author put in the file when they uploaded it. If dimensions were provided in the meta data, it should  drop in at the appropriate dimensions. If no meta data is provided, it works like dragging in from your library (see the previous bullet point).

Scott C. said: All images in Roll20 are technically tokens. You can resize the map image by right clicking on it and selecting "set dimensions" from the "advanced" option in the menu that will pop up. What dimensions the image defaults to when you drag it onto the map depends on how you're bringing it into the vtt. Dragging it in from your computer (uploading). This method should drop it in at full size regardless of which map layer you are on. Dragging it in from your library uploads If dragged onto the map layer, this method will put it on the vtt at the appropriate aspect ratio, but with no side being larger than 3 squares. If dragged onto any other layer, it will be placed into a single square. Dragging an image in from the Roll20 marketplace search in game. This will depend on what meta data the author put in the file when they uploaded it. If dimensions were provided in the meta data, it should  drop in at the appropriate dimensions. If no meta data is provided, it works like dragging in from your library (see the previous bullet point). I realize now the last map I dragged it in from my computer. Thanks!

If you have grid enabled it will very often snap to the grid.  One of the things I've learned is to try and seek out the details from the artist regarding the dimensions cause it is a real pain in the ass to try and align to grid well when the image is not perfectly setup with grid units.  There is a subset of artists out there who are reaaaaaly hungry for patrons that their free stuff all is nefariously setup to not say their grid count and they even cut the image halfway around so that its harder to line things up.  I personally just ignore ones that do this.  If the free sample is well informed and easy to use, then I'll go back to those artists.  When you use the align to grid feature while the image is in the map layer, zoom in as far as you can, then do it a few times to make it as accurate as possible.  

It also helps to make sure you're actually dragging the map tile onto the Map and Background layer rather than the Token layer.  Can't tell you how many times I've screwed that up.  This also winds up giving your map tile vision if your campaign defaults to that, which is also a pain to get rid of.