Version Information

Minecraft 1.14.4
Forge 28.2.3/28.2.1/28.2.0
Track API 1.2
Immersive Railroading 1.7.3
Curios 1.0.6.1
Patchouli 1.1-26
Botania r1.11-378

Further Information

Link to crash log: latest.log
Immersive Railroading Issue: TeamOpenIndustry/ImmersiveRailroading#753

What I expected to happen:
The game starts.

What happened instead:
The game crashed.

does it crash if you go back to forge 28.2.1 or earlier?

yes, i just tested it with forge 28.2.1 and 28.2.0 both crash with the same crash-report as 28.2.3.

see my comment on the IR ticket. Nothing we can do here really.