We just tried updating the Cesium plugin to the latest version 1.12.2 in unreal marketplace and getting a crash in rapidjson. We’re on Unreal Engine 4.27.2 and Android. Here’s the stack trace 05-04 14:15:17.872 26386 26428 F libc : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x10…

Hi @carlrealvr , When we’ve seen RapidJSON-related crashes in the past, it has been caused by the application or some other plugin also using RapidJSON, and a different version of it from the one that Cesium for Unreal uses. When these two different versions get linked into a single executable, the …

Here’s another thread talking about RapidJSON-related crashes: [image] Built Project Crash at rapidjson Call v1.8.1 Cesium for Unreal Hi everyone, we recently just compiled CesiumForUnreal v1.8.1 to work with. However, it is resulting in a crash ONLY in built projects. T…

We’ve identified it’s conflicting with one of our plugins on an older RapidJSON version. We’re thinking of taking step 1 or 2 in the end of your suggestion above but we’re not sure how to do it. Can you guys update your RapidJSON in a way that doesn’t conflict with other versions? It seems like that…

I was suggesting that (1) and (2) are things we at Cesium would have to do, I wasn’t suggested that you could do them. However, modifying a third-party library so that another version can exist side-by-side is very challenging. I don’t think we’ll be able to do it soon. Which is why I suggested the…

Hi @Kevin_Ring So in the previous version 1.6.0 (the last one before undergoing the current upgrade) we had exposed a parameter called Exponent, using it to control one of the levers (can’t remember if that’s tiles or something else but it was important). Once again, since we’re in mobile android w…

Hmm I’m not quite sure. Can you share the exact code that used to work but doesn’t anymore? And what error you’re getting? Or perhaps to my previous post where I suggested this approach?

@Kevin_Ring I believe the original post was here: [image] Better control over how many tiles are loaded at any given time Cesium for Unreal A few reasons for why it is difficult (for me) to give focussed, goal-oriented advice: It is not yet entirely clear what the actua…

Ok thanks @carlrealvr , but I’m still not sure how to help. I understand you’ve added some code to somehow adjust tile loading behavior, but I don’t know exactly what that code is. And now in the latest versions of Cesium for Unreal, that code somehow causes the tileset to fail, but you haven’t said …

Thanks @Kevin_Ring seems to work better indeed once we updated, and for now also stable without the custom change to Exponent.

Crash in rapidjson on Android with latest 1.12.2 plugin

Cesium for Unreal

carlrealvr June 29, 2022, 9:15am 11

@Kevin_Ring Getting a pesky crash though, wondering if you can take a look here (created as a new topic) Crashing when a Cesium title loads and we switch levels

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Crash in rapidjson on Android with latest 1.12.2 plugin

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