Payflow: Turn Off PayPal Express and PayPal Credit in 2026?

# Payflow: Payment Option Visibility Configuration Gap ## Summary – Attempted to hide PayPal Credit and PayPal Express Checkout from Hosted Checkout Pages – Configuration settings described in documentation were missing from PayPal Manager – Standard parameter methods (e.g., `RETURNURL`) didn’t work for payment options – Required PayPal intervention for solution implementation ## Root Cause … Read more

What directory and file do I target to code sign my ClickOnce manifest and .application files?

# Signing ClickOnce Artifacts: Resolving Manifest Signing Errors in Multi-Version Deployments ## Summary Signing ClickOnce artifacts using the `sign` command failed because the target directory contained multiple versioned subfolders. The signing tool attempted to sign every `MyApp.exe.manifest` found across all versions, causing a duplicate file error. Root cause was incorrect path specification for the base … Read more

Claude Code: OAuth token expires frequently, requiring repeated login

# Claude Code: OAuth token expires frequently, requiring repeated login ## Summary – Users encountered repeated OAuth token expiration errors mid-session in Claude Code (v2.1.2) – Authentication failed with 401 errors during active conversations – Manual re-authentication via `/login` was required to resume functionality ## Root Cause – **Expired session tokens**: Authentication tokens expired prematurely … Read more

testcafe studio native automation

# TestCafe Studio Native Automation Discrepancy Between Recording and Batch Execution ## Summary – Tests using `t.browser.nativeAutomation` pass during test recording but fail during batch execution via “Run all tests”. – The issue occurs because TestCafe Studio enables native automation during recording mode by default but not during multi-test runs. – Automated tests rely on … Read more

Setting OrderNumber of rows in a table

## Summary A developer attempted to set sequential `OrderNumber` values for time zones, prioritizing US entries first (sorted alphabetically) followed by others (also alphabetically). The initial approach with `ROW_NUMBER()` failed due to improper partitioning/ordering and incorrect update logic. ## Root Cause – The `ROW_NUMBER()` calculation in the subquery operated solely on the **subset of US … Read more

webclient proxy – connection time out error

# WebClient Proxy Configuration Leading to Connection Timeout ## Summary A timeout error occurred when using Spring WebClient configured with an HTTP proxy. Despite correctly setting the proxy host and port, requests consistently failed with connection timeouts. The issue arose in a Java application leveraging Project Reactor’s HttpClient. ## Root Cause – **Proxy configuration wasn’t … Read more

Batch crop a folder of videos?

# Postmortem: Batch Video Cropping Failure via FFmpeg Script ## Summary An automation attempt to crop multiple videos using FFmpeg in a Windows batch script failed due to unresolved placeholders in filter parameters and improper variable handling. The script executed without error detection but produced incorrect outputs. ## Root Cause – **Undefined crop parameters**: Placeholders … Read more

Best practices to harden a Python experiment hook that triggers an external quota increase

Best practices to harden a Python experiment hook that triggers an external quota increase Summary A minimal Python experiment hook randomly assigned users to control/treatment groups and called an external quota service. Production incidents occurred where duplicate quota increases, inconsistent assignment state, and traffic spikes caused: Permanent quota over-allocation to treated users Experiment group contamination … Read more

Method not found: ‘Void Microsoft.IdentityModel.Tokens.TokenValidationResult..ctor

# Technical Postmortem: MissingMethodException in Blazor Web App During OIDC Token Validation ## Summary A Blazor Web App targeting .NET 9.0 failed during authentication with a `System.MissingMethodException` when calling `OpenIdConnectHandler.ValidateTokenUsingHandlerAsync()`. The application crashed at startup due to an incompatible version of `Microsoft.IdentityModel.Tokens`, specifically related to the `TokenValidationResult` constructor signature. Key details: – Exception: `Method not … Read more

Is robot framework able to test that something is *not* happening?

# Postmortem: Handling Negative Assertions in Robot Framework for MQTT Event Verification ## Summary A critical gap was identified in automated tests for an IoT lighting system: Robot Framework had no explicit mechanism to confirm the **absence** of an expected MQTT message within a defined time window during night-mode operations. This led to incomplete verification … Read more