TLDR; the flag {hidden} was set on all loaders.
The mod adds tech tree unlock requirements and tech so this flag is not needed anymore.
It hid the recipe in vanilla becouse it had none of this features implemented.
The mesher file was overritten with a older version with the fire animation in the wrong position.
D10X1D0
commented
6 years ago
Previous fixes for this issue are in too. https://github.com/McGuten/5DimsFactorioMods/issues/80
The previous masher animation replacement was overwritten by a older file with the bug, I re-commitet the same fix. The mashers on the left had the animation shifted up and right out of their windows. before -> https://steamcommunity.com/sharedfiles/filedetails/?id=1487712145 after->https://steamcommunity.com/sharedfiles/filedetails/?id=1487784676
TLDR; the flag {hidden} was set on all loaders. The mod adds tech tree unlock requirements and tech so this flag is not needed anymore. It hid the recipe in vanilla becouse it had none of this features implemented. The mesher file was overritten with a older version with the fire animation in the wrong position.