Again as I was testing this basic stuff on a server.jar, I guess that's why you put the file for download, right? I got the same problem, make a pickaxe, axe, etc, I put in a crafting table two times 4 number of sticks in the middle, add some wood above it for the wanted tool, and now it does not stay the same number, no, It multiplies *2 seems...

Never saw so much sticks there....

And thank you for repairing the attach part, lovely, saves a lot of hassle....

So, server.jar, chop tree down, make planks, make craftingtable, place it, put planks in right order to gain sticks, enough for wanted tools, place the sticks accordingly and try to finish the tools required, then you'll see..... (i hope)

Good luck, and 1.13, Way to go!!