I was trying to perform ISG on the 20th anniversary update and was unable to get it to work at the paint cans. I go to the legacy steam version and do it first try. The paint cans don't activate ISG whenever I try the glitch on the 20th anniversary update.
I'm not an expert on ISG and this was my first time ever doing it so I don't really know what happens differently, I doubt they would release another patch to re add a glitch so it will probably stay like this.
maybe specific computer(or laptop) makes it harder in 20th anniversary update?
It has recently been discovered that the commonly used speedrun package referred to as the "5135 Unpack" has made changes that grant its users unfair advantages which were never present in any vanilla version of the game.
In light of this discovery, We've released an update which fixes these is