I have been using forge version 1.12.2-14.23.5.2768, and it has been working fine for me for as long as I have been doing mods, but I have been attempting to play RLCraft with my friends recently, and it required a more updated version of forge, so I downloaded the latest version, when I attempted to click play after allocating the extra RAM in the JVM arguments (as is typical in modding, or MC in general) and the launcher closed for a little bit, not opening anything else afterward, and then re-opening the launcher, saying that there was an 'unexpected issue' not even leaving a crash report. My friends are not experiencing this same issue, so I do not believe it is caused by the mods in the pack. My config log is here https://pastebin.com/7F3yDTPL . This log was created when I attempted doing the mods using only the oldest version the mods accept. I do not think I installed anything wrong, having double-checked with my friends how they downloaded the mods.