440A should definitely burr, if it's apexed. If not seeing a burr yet, it likely needs more work at the edge. The blade grind (dirk/dagger-like) doesn't help, being pretty wide in terms of good cutting geometry. That'll make it a little more work in thinning the apex enough to form a good burr. Don't progress beyond the coarsest* stone until you see a burr. When it's close, go much more lightly with the touch to make sure you see the burr forming before it's scrubbed away. At 22° per side, the apex will need to be very crisp to get it to shaving-sharp. At narrower geometry, it's easier to do. These blade grinds weren't really made for fine slicing, so they're always more challenging to get it there.
* - If the coarsest stone is VERY coarse, such as below ~220 or so, you might consider stopping shy of a full apex with that stone, and apex instead with something at/above ~320 instead. Sometimes a very, very coarse stone leaves the edge too rough/ragged on 'soft' steels like 440A to see a discernible burr, if it's there.
