Reproducing from a vanilla install of minecraft 1.14.4:
install forge 28.0.32using the installer jar
place Apotheosis-1.14.4-2.1.1.jar into the mods folder
run the profile forge generates
game loads up as expected
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install forge 28.0.34 (or any more recent version up to 28.0.40) using the installer jar
place Apotheosis-1.14.4-2.1.1.jar into the mods folder
run the profile forge generates
game crashes on start, providing a launcher_log with exceptions that I don't understand: https://gist.github.com/kemus/79d8d8763789a2c53d362e93eab2bcde
I've tested the 93 mods I've downloaded, and this happens with 5 of them (of which apotheosis is by far the most popular):Apotheosis-1.14.4-2.1.1.jar (https://www.curseforge.com/minecraft/mc-mods/apotheosis)EnderBags-1.14.4-4.1.0.jar (https://www.curseforge.com/minecraft/mc-mods/ignition-enderbags)morelights-1.3.1.jar (https://www.curseforge.com/minecraft/mc-mods/more-lights)RGBStone_1.0.jar (https://www.curseforge.com/minecraft/mc-mods/rgb-stone)ruins-1.14.3.jar (https://www.curseforge.com/minecraft/mc-mods/ruins-structure-spawning-system) [this mod is for 1.14.3, but I'd expect an incompatability message instead of a crash]
Happy to provide any additional information needed.