I’m using paging3 lib

class RepoResultPagingSource(
private val repository: Repository,
private val query: String
) : PagingSource<Int, RepoResult>() {

override suspend fun load(params: LoadParams<Int>): LoadResult<Int, RepoResult> {
    try {
        val nextPageNumber = params.key ?: 1
        Log.d("TRACE", "Loading page number $nextPageNumber")
        val repos = repository.getRepositories(query, nextPageNumber)

        // form a page worth of RepoResult
        val repoResults = repos.map { repo ->
            val contributor = repository.getTopContributor(repo.owner.login, repo.name)
            RepoResult(repo.owner.avatarUrl, repo.name, contributor.login?: "")
        }
        return LoadResult.Page(
            data = repoResults,
            prevKey = null,
            nextKey = nextPageNumber + 1
        )
    } catch (e: Exception) {
        Log.d("TRACE", "encountered ${e.message}")
        return LoadResult.Error(e)
    }
}

override fun getRefreshKey(state: PagingState<Int, RepoResult>): Int {
    return 1
}
}

in my activity I collect like

lifecycleScope.launch {
        repeatOnLifecycle(Lifecycle.State.STARTED) {
            viewModel.pagingData.collect { pagingData ->
                adapter.submitData(pagingData)
            }
        }
    }

my adapter
class RepoResultAdapter : PagingDataAdapter<RepoResult,
RepoResultAdapter.RepoResultViewHolder>(DIFF_CALLBACK) {

companion object {
    private val DIFF_CALLBACK = object : DiffUtil.ItemCallback<RepoResult>() {
        override fun areItemsTheSame(oldItem: RepoResult, newItem: RepoResult): 
Boolean {
            return oldItem.name == newItem.name
        }

        override fun areContentsTheSame(oldItem: RepoResult, newItem: RepoResult): 
Boolean {
            return oldItem == newItem
        }
    }
}

inner class RepoResultViewHolder(view: View) :
    RecyclerView.ViewHolder(view) {

    private val repoTV = view.findViewById<TextView>(R.id.tv_repo_name)
    private val contributorTV = view.findViewById<TextView>(R.id.tv_contributor)
    private val repoIV = view.findViewById<ImageView>(R.id.iv_owner)
    fun bind(repoResult: RepoResult) {
        repoTV.text = repoResult.name
        contributorTV.text = repoResult.topContributor
        Glide.with(itemView)
            .load(repoResult.avatarUrl)
            .into(repoIV)
    }
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): 
RepoResultViewHolder {
    val inflater = LayoutInflater.from(parent.context)
    val binding = inflater.inflate(R.layout.item_repository, parent, false)
    return RepoResultViewHolder(binding)
}

override fun onBindViewHolder(holder: RepoResultViewHolder, position: Int) {
    getItem(position)?.let {
        holder.bind(it)
    }
}
}

it displays less than 2 pages of data even though the logs show that 4 pages are loaded before encountering a network exception. 2 questions

1.How do I resume loading pages after an exception

2.If my log in pagingsource says I’m on page 4 why do I see less than 2 pages of rows?