The tile says No comp
Griddy works on the active comp. Click into a comp’s timeline or viewer so it’s active, then try again.
I can’t see the guides in the viewer
The viewer’s guides are hidden. Click the eye in Griddy’s top bar, or choose View > Show Guides in After Effects. Guides only ever show in the viewer. They never appear in a render.
My layers don’t snap to the guides
Snapping to guides is off. Click the magnet in Griddy’s top bar, or choose View > Snap to Guides.
The tile says No room
The margins and gutter leave no room for the cells. Lower the margins or the gutter, or use fewer columns and rows. For a grid inside a layer, the layer may be too small for the grid’s current values. Griddy leaves the comp as it was.
The tile says No layers
Bounds and Cmd-click Grid work on the selected layers. Select at least one layer that has something visible at the playhead. Cameras and lights don’t count.
The tile says Finest or Fewest
Finest means the grid already has 48 columns and rows, the most it can have. Fewest means it’s down to one column and one row.
The tile says No guides
Clear found no guides to remove. With Shift or Alt held, the comp has no vertical or no horizontal guides.
The tile says Already there
Every guide you asked for is already in the comp, so Griddy didn’t add a copy. Griddy never doubles a guide.
A toggle shakes and nothing changes
Show, lock and snap belong to the comp viewer. If no comp is open in the viewer, the toggle shakes and a message says Open a comp in the viewer first. Open the comp in the viewer, then click the toggle again.
If the message says After Effects kept its guides as they were, After Effects didn’t take the change. Use the same command from its View menu.
Clicking Grid took my grid away
Grid turns the grid on and off. When the comp already has a grid, the tile is pressed and a click takes it off. Click it again to put the grid back, or press Undo.
My own guides moved or disappeared
Changes to the grid only touch the guides the grid placed. Clear is the one tile that removes every guide. Press Undo to bring them back, and use Shift-click or Alt-click Clear to remove only one direction.
The grid isn’t where I expected
A plain Grid click puts on the last grid you used, in any comp. Check the counts in the top bar and the margins in Grid’s right-click menu, then change them. The comp follows each change.
Griddy keeps each comp’s grid in that comp’s Comment in the Project panel, as text that starts with {mf:griddy. If you delete that text, Griddy forgets the comp’s grid but leaves its guides. Clear removes them.