Why LogonUserW Fails on Azure AD‑Joined Machines

Summary A custom Credential Provider was designed to enforce Multi-Factor Authentication (MFA) by intercepting the Windows logon flow. The architectural intent was to perform a pre-validation step to ensure credentials were correct before triggering the MFA prompt, thereby preventing “MFA fatigue” or unnecessary prompts for invalid users. While this worked for traditional on-premises Active Directory … Read more

Fix default post type for custom taxonomy terms in WordPress admin

How to Fix Wrong Default Post Type for Custom Taxonomy Term in WordPress Admin Summary When building custom post types with custom taxonomies in WordPress, clicking on a taxonomy term in the admin area often directs users to the wrong post type—defaulting to the built-in “Posts” instead of your custom post type. This creates a … Read more

How to Resolve Relative Import Failures in Google Repo Manifests

Summary The challenge involves relative imports in repo manifests for hierarchical project structures. When using the Google repo tool, including one manifest file into another with a relative path (e.g., ../l2-1/manifest.xml) fails due to toolchain limitations, forcing developers to use absolute paths or submodules, which complicates change propagation across project layers. Root Cause Repo tool’s … Read more

ASP.NET Core 9 Swagger UI Fails After VS Migration

Summary A developer migrating from Visual Studio Community to Visual Studio Professional encountered a scenario where an ASP.NET Core 9 Web API failed to serve content (specifically the Swagger UI) when launched via the default HTTP/Kestrel profile, but functioned perfectly when switched to IIS Express. This postmortem examines why the launch profile configuration and the … Read more

Avoiding Invisible DocuSign Stamp Tool: API Contract Fixes

Summary A critical failure occurred in the document signing workflow where the Stamp tool disappeared from the recipient’s interface. While the code previously functioned correctly, the stamp option became invisible to end-users, preventing them from completing necessary legal formalities. The issue was not a logic error in the application code, but a breaking change in … Read more

How dropping a column breaks SQL Server views and how to avoid it

Summary A production incident occurred when a schema change (dropping a column) caused a downstream view to become invalid. While manual intervention via SQL Server Management Studio (SSMS) appeared to “fix” the issue by allowing a rename, attempting to automate this via scripts resulted in syntax errors. This postmortem explores the discrepancy between GUI-driven metadata … Read more

Docker volume masking wipes custom WordPress theme during core updates in produc

Summary A production WordPress instance experienced data loss of custom application code during an automated core update. The issue stems from a conflict between Docker Named Volumes and Bind Mounts. While the engineer intended to persist plugins and uploads via a named volume, the custom theme—which was also part of the container image—was effectively “shadowed” … Read more

Why increasing Firebase App Check TTL won’t cut reCAPTCHA costs

Summary A production environment experienced unexpectedly high billing costs due to reCAPTCHA Enterprise assessments within a Firebase App Check implementation. The engineering team attempted to mitigate costs by increasing the Token Time to Live (TTL) from 1 day to 7 days, assuming this would reduce the frequency of assessment requests. However, the billing metrics remained … Read more

Spring Boot MongoDB URI Ignored: Resolve Property Precedence and Avoid Outage

Summary A production service failed to connect to its remote MongoDB Atlas cluster during a deployment to a new environment. Despite providing a valid spring.data.mongodb.uri in the application.properties file, the Spring Boot application ignored the configuration and attempted to connect to localhost:27017. This resulted in a ConnectionRefused error, causing a complete service outage for all … Read more

Why ROWNUM = 1 Without ORDER BY Broke Our PL/SQL System

Summary A production issue was identified where a PL/SQL routine was returning incorrect routing stages for specific part numbers. The system was failing to distinguish between multiple valid routes because the query used a non-deterministic rownum = 1 filter. This resulted in the application picking an arbitrary record when a part number was associated with … Read more