There are some photos in Power Module / 3D Printer Module /Linear Module that show the linear module labelling. Note the bit below the words “Linear Module” where it says “Lead ## mm Stroke 264 mm”. The modules with “Lead 08 mm” are the Z-axis modules and shouldn’t be used in other positions.
If you’re pushing each module individually to the end with the bed off, it probably isn’t simple module misalignment. A broken endstop switch doesn’t seem likely either.
Another possibility is that you have a broken linear module, and while parts of the innards are user-serviceable by determined tinkerers, you’ll want to contact support before opening anything so that you don’t void your warranty. At least one person has received modules with damaged bearings.
Also, here’s an old thread in which a former Snapmaker support person describes a simple test for linear modules that aren’t operating at the same speeds: "Bump" in Y-axis - #44 by Edwin