Bugs:
Bug number 1:
When using the blizzard native called SetMapMusic, you can give it an imported song as an argument for it to play, however, you can also give it a playlist, you do that by using the character ; as a separator.
This however was broken with reforged and no longer works, it does not play anything.
Bug Number 2:
Custom unit shadows are not displaying in-game for SD mode, when you right click on an editor unit and create a custom unit on it, for some reason, the custom unit created does not display a shadow (in-game).
It however displays the shadows in-editor.
Bug Number 3:
Certain imported trees (trees, not doodads) do not display in-game (I believe it might be all), the one I noticed that used to display in-game but no longer does so are Fingolfin’s trees from the hive workshop (they display in-editor just like shadows but not in-game):
Upon further testing I have discovered that the bug ONLY occurs if you change the model of a DEFAULT tree, if you create a CUSTOM tree it displays the custom model properly, this seems to be a similar default-custom issue as the shadow bugs.
Here’s some example trees to import, settings to make them work are:
1)model has a lightweight model: false
2)model variations to 1
3)custom texture to none
4)change model to the one you want
https://www.hiveworkshop.com/bundles/pine-snow.247588/
https://www.hiveworkshop.com/threads/pine-variation-3.246875/
https://www.hiveworkshop.com/threads/pine-variation-2.246874/
https://www.hiveworkshop.com/threads/pine-variation-4.246876/
https://www.hiveworkshop.com/threads/pine-variation-1.246873/
Bug Number 4:
Water is a bit too transparent compared to pre-reforged which makes tilesets below water be noticeable on deep water (it wasn’t, at least not as much)
Here’s an example between 1.27b:
https://cdn.discordapp.com/attachments/311662737015046144/721095617409187880/unknown.png
and 1.32.6:
https://cdn.discordapp.com/attachments/311662737015046144/721095689685172274/unknown.png
As you can see the one below (reforged) has spaces in the water where you can see a different “coloration” which means that there is a tile below that is a different color, this is a product of water being slightly more transparent than it was before.
Bug Number 5:
The shader logic for particle emitters is dimming them based on the location of the source model instance even if that model instance is the portrait and not a part of the 3D world view. (thanks Retera for the in-depth explanation of the bug I found)
Example:
(Try this in SD mode)
Host a melee map as night elf in singleplayer, select a wisp, look at the portrait, use iseedeadpeople, look at the portrait again.
For some reason the particles are only working properly when the game has iseedeadpeople on, else they dim and are barely visible.
Example:
Wisp portrait in 1.27b:
https://cdn.discordapp.com/attachments/311662737015046144/721102803497648128/wispportrait1.27.png
Wisp portrait in 1.32.6:
https://cdn.discordapp.com/attachments/311662737015046144/721102847499960431/unknown.png
As you can see it’s much darker, however…
https://cdn.discordapp.com/attachments/311662737015046144/721102904299356250/unknown.png
If we use the cheat iseedeadpeople in singleplayer that reveals all the map, for some reason, wisp portraits get “fixed” and lightning displays properly on them.
Bug Number 6:
War3MapPreview does not work anymore, you used to be able to use War3mapPreview (often being a .tga file) to set your minimap preview for the game, however with Reforged this was broken.
There is a workaround now but it is more work for a feature that was broken, which involves setting your minimap to something different, then in-game with code replacing it on run-time, as you can guess, this would be unnecessary work if it were to be fixed.