Did you checked the air holes in the top tray? They get stucked pretty fast. After 4 grams and combustion you should definitely do a deep clean in iso. And your grinded material should be dry so put it on a sheet of paper for at least 30 minutes.
I also have a square from namaste and it works fine. I think haze just updated their manual and all units from phase 2 to upwards are the same. You can ask them which phase your unit is. And I mean you get their 10 year warranty and for a device you bought for a small price(that’s why you bought it at namaste in the first place like me ;D)
Had to use it for a while to get all the techniques so after 24 hours you should not jump to conclusions. And really, clean the square. And look after each draw how the air holes are and maybe do quick iso q tip swipe. Those air holes are often the problem and can get stucked pretty fast, like after a hit.
Okay guys I can think I can definitely rule out my technique. I own or have owned a dabudda an arizer tower,a pinnacle,pinnacle pro,pax1,pax2,vivante alternate,grasshopper . My friend has a miliana, a mighty and a magic lunch box. All of witch I have used and only combusted once with the dabudda the first day I got it(My fault as it's unregulated and depends completely on draw speed and technique). Me and my wife and friend all tried the square last night and couldn't get a good draw between us and were not amatures. In the almost 4 grams I have tried through it I got 3 or 4 good draws with visible vapour the rest were just flavour I heatsoaked the bowl I took long slow draws I tried ripping it and it makes no difference. Every bowl came out with some light brown spots and the other 85 percent green. I vaped this in my dabudda and it still produced loads of vapour so I can rule out material. I disassembled the whole unit last night and there was some sticky bits on the screens it looked barely used for the amount off material I went through so I think there's a seal issue somewhere. I think it's just cooking in the bowl.
I have seen countless YouTube videos and reviews so I know the vape performs much better than I am experiencing. This is why I have decided to try another unit as on paper it meets my every need . On demand with 4 bowls a good warranty and good customer service.
I don't have concentrates as I'm in the UK there not very common and very expensive.