Derailed Train & Gold Bars

[Zyamaia]

So after many attempts I finally made it into the vertical train car which is supposed to contain 2 gold bars. Well getting to the bottom of said train only got me some express revolver cartridges. I'm playing on PC if that makes a difference. My question is, is there a spawn timer on it? As a side note the car that is supposed to contain the jewelry is empty also empty.

[Lord Vampair]

Maybe It's a bug. I got them on chapter 3.
I have the same problem with the prisoner bound to the rocks: He's not there and now I can't get his rewards (a gold bar).

Probably time in this game is connected with the exploration, so, if you explore a section of map but you don't keep in mind to trigger events/get items, they can disappear also if you don't change chapter.
For example, you can read about people who weren't able to get all documents because they explored too much but ignoring to loot "letter to bonnie" even if the chapter was right one.
If it happened with a uinque items, I think it can happen also with other items.

[Jaunitta 🌸]

I found them gold bars at the bottom of the up turned rail even replaying at the epilogue they had respawned.
If you found them bfore they wont respawn as Arthur.
I dont think the respawn save thingy works on this particular gold its way too hard to get in there.
Did you try the gold bar found in the burnt sherif room under the table in chapter 2
There is a video on youtube showing how to get that to repeat never worked for me. But I found heaps of gold bars scattered everywhere. There a small chest in the burnt trees down from the camp in chapter 2 on the right that has a gold bar. I never seen that one mentioned.

[Zyamaia]

Aaah that's the issue, I went there on free roam.

[Terrific_Ivan]

I encountered similar bug with other treasure. Try to sell all your gold bars from inventory and visit place again. It worked for me.

[Sgt. Pepper]

I got the 2 gold bars in there right at the beginning of chapter two. One of them is under a box or whatever.