weapon mods bug

Okay, everyone. I posted a solution on another page related to this bug and it seems to have worked for myself and some others. I'm going to copy my solution to as many of the pages about this bug as I can. More people will see it, and hopefully it will work for them as well. Just so you know, I play ME3 on the PS3. Here is my original reply:


"Everyone, I found a solution to my own issue with this bug earlier tonight and I wanted to share it here. I hope that it may help someone else. I'm not saying that it is a definite fix and I'm not even sure if it would work again, were I to try it a second time, but this is what happened:

I have experienced this bug multiple times during the two(ish) years that I have had ME3. I always worked around it by deleting everything ME3 related from my PS3 and then reinstalling all DLC and patches when I planned to do a Mass Effect playthrough. This particular time, after deleting all save data and game data from my PS3, then reinstalling everything, I still encountered the bug when I tried to pick up the first two SMG mods during Priority: Mars.
I realised that, when I had picked up the first gun I found on Mars (which was the M-4 Shuriken, as an Infiltrator), I had simply pressed circle to continue when, in previous playthroughs, I had always changed my loadout then and there.
I restarted my game, loaded the save I had made at the very beginning of the mission, and played up to where I found the M-4 in the security station. This time, I changed my loadout and cycled through all of the weapons of every category so that none were marked as 'new'. After doing this, I continued on my way and was able to pick up every weapon mod during the rest of that mission.

Now, as I said, I don't know why this worked or if it will work for anyone else. It worked for me this time, and I hope that it works for someone else as well.
This is an incredibly frustrating bug, I know. Good luck."