I must say, I just finished my 2nd iOS Save File for GTA III but it was my first ever glitched Save I encountered in my history of playing GTA since 2001. Seriously, I never came into a glitch like this. What happened was during "Deal Steal," you need to get into a Yardie Lobo, pick up a contact, and then head to the Hospital Parking Lot in SI to meet up with Colombians to retrieve a Brief Case. However, since Mobile does NOT have the legendary classic Taxi Trick existing, you need to use Mission Scripted Passengers as a way to make DP Vehicles using the Crusher Trick. Sadly, when I was using the contact during Deal Steal to convert 4 of my Vehicles into DP form while passing the Mission, I somehow duplicated the pink dot at the Hospital in SI. In fact, it was duplicated 6 times. I've read Online by doing some searches and talked to a couple other people about this problem and it seems rare, but possible. I saw a Topic on this Forum about a guy playing on PC Version who got the same glitch, but did nothing of the sort I did. I am wondering what causes it. I have my theories but I can't be certain. I've heard of it happening on PS2, PC, and now iOS.
Luckily, thehambone was able to change a 1 to a 0 in the Scm File or something and fix it for me. I re-did the Save in the first place to replace my Old Save on iOS since I could improve, of which I did. It just pissed me off that Deal Steal got glitched and I had to use Outside Sources to fix it. As people should know, I am not a fan of that, however, it was the only way to fix it.
None of this would of happened if Car Thieves were still a viable option to use to make DP Vehicles in free roam, however, this doesn't seem to work anymore, or at least for iOS or my game Version. That's why I had to go to extremes while using Mission Scripted Passengers to make many DP Vehicles at once and pass the Mission at the same time...
Any information about this type of glitch would be great. I read in the OP already about Mission Blending, in other words, duping the Mission, but I didn't dupe anything. Plus, all those duping tricks don't work on Mobile Platforms. Hence why you can't even use the legendary Taxi Glitch to do Taxi Driver in another Vehicle other than a Taxi. Holding Buttons on Mobile doesn't work, thus I physically can't duplicate anything, yet, my Save got glitched. No joke, first time ever. I can't even believe it happened but thankfully thehambone fixed it!