IllegalStateException when loading items

[AlonShahaf]

I'm experiencing a crash when reloading my sections. In my setup we have 1xItemSection + 2xListSection, all using the same view item type. On binding, we hide all sections, and when we update the dataset we do the following:

1. setItem on ItemSection (could be a null item)
2. set on both ListSection
3. show the section if they contain data.

We're also using DiffUtil for both list sections. The crash is happening on NestedSection.java #199 When we debug the section had data and itemPosition is usually 0.

Thanks in advance.

• Android API level: [28]
• Library Version: [3.0.0]
• Recyclerview Version [AndroidX 1.0.0]