问题可能由于缓存造成，可以尝试清除缓存并重新查询SkuDetails信息：

private BillingClient billingClient;
private Map skuDetailsMap = new HashMap<>();

public void clearSkuDetailsCache() {
    skuDetailsMap.clear();
}

public void querySkuDetails(final List skuList, SkuDetailsResponseListener listener) {
    SkuDetailsParams.Builder params = SkuDetailsParams.newBuilder();
    params.setSkusList(skuList).setType(BillingClient.SkuType.INAPP);
    billingClient.querySkuDetailsAsync(params.build(),
            new SkuDetailsResponseListener() {
                @Override
                public void onSkuDetailsResponse(BillingResult billingResult, List skuDetailsList) {
                    if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
                        for (SkuDetails skuDetails : skuDetailsList) {
                            skuDetailsMap.put(skuDetails.getSku(), skuDetails);
                        }
                    }
                    listener.onSkuDetailsResponse(billingResult, skuDetailsList);
                }
            });
}

public SkuDetails getSkuDetails(String sku) {
    return skuDetailsMap.get(sku);
}