I wouldn't mind a having a split between the latest patch that allowed for the wall breach in the finale and the one just after it, released last June, since that is a time difference of about 2 minutes, however it is worth noting that this still exists
Fast run is not allowed in runs, which unfortunately forces you to use a 2nd character if you want to run something, unless there's some way to remove fast run from your main character
You should be able to use a 2nd character to at least mitigate the cooldown time once the update drops unless Rockstar is going to be that petty and make the cooldown apply to both characters after completing the finale for one. Otherwise, you can just cancel the heist if the run is killed and go again
You have to complete a job after joining the original invite only session and then go back to freemode and it should be set up from there. It's also what allows og heist speedrunners to find a new session so quickly
If the CEO way is patched then you could try the method where you fly low to the ground at the terminal and then request Mk 2. I don’t know if it’s patched because I left for vacation on the day the dlc dropped
Just give it about 1/2-1 second longer, if it’s crooked then you’re running away from it too quickly