EDIT: Apparently it's been fixed already, so this thread can be ignored.

Taken from: https://www.reddit.com/r/gtaonline/comments/9280zt/do_not_attempt_humane_raid_emp_it_will_fail_on/

"There is a new glitch since 1.44 dropped where there is an instant death area above the seas at certain places. This can affect:

1. CEO warehouse sales with the Tug
2. MC business sales with the Dodo (and apparently boat ones too)
3. Humane Raid - EMP
4. Hangar sourcing (and probably sales) that are over the sea
5. I/E sourcing with the barge and cargobob

Especially don't bother if you are doing Criminal Mastermind."

Video (from the Reddit post):

Just thought I should post this for anyone that'll want to do OG Heist runs.

We should contact the Rockstar Support.

Gl with that. R* probably print and shred all emails coming in to them. B7t yeah this new glitch is very fuck. Ill look onto it more when im back from esa tomorrow

Since there was no closing thoughts about this in this thread:

Hoxi informed me that this might be fixed now, it's crossed out on the bug megathread on reddit aswell: https://www.reddit.com/r/gtaonline/comments/928cl0/after_hours_144_bug_megathread/