OpenTTD 13.0-RC1 loading save game error

[sbeketov]

Hi,

After installing the latest OpenTTD 13.0-RC1 over the latest stable version (12.2), I receive the following error when trying to open a saved game:


Crash report is also attached.

I assume, from the error text itself, that the issue is with the NewGRF module, but have no idea how to fix it. Would appreciate any ideas/leads where to start looking at or, even better, how to fix this.

Many thanks in advance.

crash20230113204953.txt

(29.5 KiB) Downloaded 35 times

[peter1138]

You have changed NewGRFs mid-game, this has caused some vehicles to be broken.

The reason it previously "worked" is because our release builds don't have all the checks that betas/RCs have.

[sbeketov]

You have changed NewGRFs mid-game, this has caused some vehicles to be broken.

The reason it previously "worked" is because our release builds don't have all the checks that betas/RCs have.

Thanks. You're right, I have changed NewGRFs mid-game with certain additions.
So what would be the solution in case I would like to continue playing in version 13.0-RC1? Disable NewGRF modules? Or unmark any specific "checks" in this RC? Thank you.

[Argus]

Changing newgrf mid-game is always problematic. The only workaround is if you have the original version saved, play it in that one because if you don't load the game you can't even try to revert the changes. Otherwise, the game is probably lost. Anyway, you've been warned, haven't you.

[sbeketov]

Changing newgrf mid-game is always problematic. The only workaround is if you have the original version saved, play it in that one because if you don't load the game you can't even try to revert the changes. Otherwise, the game is probably lost. Anyway, you've been warned, haven't you.

I can always downgrade to stable version 12.2 in which my current game was started and NewGRF used, and that works, already tried it.
It's just a bummer that I cannot use a more recent version 13.0xx to continue playing my current saved game. I have been warned of course, so no hard feelings
Thanks for your responses!

[Eddi]

You have changed NewGRFs mid-game, this has caused some vehicles to be broken.

The reason it previously "worked" is because our release builds don't have all the checks that betas/RCs have.

Thanks. You're right, I have changed NewGRFs mid-game with certain additions.
So what would be the solution in case I would like to continue playing in version 13.0-RC1? Disable NewGRF modules? Or unmark any specific "checks" in this RC? Thank you.

Stop messing with NewGRF settings. you can try selling all problematic vehicles and buying them back (the error suggests the problem is a mixup of planes or helicopters), but there is no guarantee that this will fix anything

[sbeketov]

Stop messing with NewGRF settings. you can try selling all problematic vehicles and buying them back (the error suggests the problem is a mixup of planes or helicopters), but there is no guarantee that this will fix anything

Thanks a lot for your response! In fact, after you mentioned that it is likely a mixup of planes and helicopters, I went to the list of all vehicles and identified one problematic helicopter (that had "unspecified" in its settings name). Once I sold it, the saved game with the current NewGRF sets and options perfectly started up in the new 13.0-RC1 version! Thanks again!

[Argus]

Unfortunately, sometimes certain changes are necessary, for example when the scenarios author uses a train set that does not cooperate with the new industry he put there. For example, DB set and XIS, or the old UKRS. Of course, this means making a problem, but sometimes there is no other way.

[Eddi]

that is true, but switching vehicle sets is generally less troublesome if there aren't any existing vehicles on the map

[Argus]

Yes, if the vehicles are not already on the map, no problem. It's worse with industry, that's why I don't like pre-positioned industry. Vanilla is so boring though...