# Postmortem: Serial Data Corruption in Windows API Read ## A C++ application using Windows API for serial communication experienced intermittent data corruption when reading from an Arduino device. Data was clean only when Arduino’s transmission delay was excessively high (1000ms), making real-time control impractical. ## Root Mismatched serial configuration between Arduino and C++ application: … Read more
# Postmortem: Unstable Clock Signal in JK Flip-Flop LED ## When constructing a JK flip-flop clock circuit with an LED indicator, the LED blinks at ~0.5-second intervals despite unclear logic. Analysis reveals unstable clock triggering due to unintended button behavior causing erratic state transitions. ## Root – **Contact bounce**: Physical push buttons generate electrical noise … Read more
# Technical Postmortem: Overcoming Limitations in VS Code Syntax Highlight ## Our team encountered challenges while creating a custom VS Code theme when attempting to modify syntax highlighting colors for specific Python constructs (e.g., method calls like `classInstance.compute()`). The primary pain point was identifying the correct TextMate scopes due to ambiguous naming conventions, language-specific scope … Read more
# Python Script Crashes After One Hour: Spotify Token ## – A Python script using the Spotipy library unexpectedly crashes after approximately one hour of runtime. – The crash occurs because Spotify access tokens expire after **60 minutes** per Spotify API policy. – Without token refresh logic, subsequent API calls fail once the token expires, … Read more
# Using setTimeout() instead of step.sleep() in a Cloudflare Workflow? ## Summary A workflow relied on Cloudflare K/V writes with a strict rate limit (1 write/sec per key) after each API call. Initial mitigation used `step.sleep()` to avoid throttling, but the engineer explored substituting it with `setTimeout()` to simplify step architecture. Replacing the native sleep … Read more
Azure AD B2C Session Management: Preventing User Creation After Abrupt Session Closure Summary Azure AD B2C unexpectedly creates user profiles if a session terminates abruptly after users submit signup information. Occurs specifically during the final signup stages (e.g., post-submit/continue click), leaving the user journey incomplete. Impacts systems relying on custom policies that trigger user creation … Read more
Cant Serialize and Deserialize ViT in Keras When Setting Classification = True Summary Attempts to serialize (save) or deserialize (load) the ViT Keras model fail exclusively when classification=True Models saved with classification=False work correctly Error arises during deserialization when reconstructing the model architecture Common error: AttributeError indicating cls_token is missing upon loading Root Cause The … Read more
Postmortem: Unanimated Progress Bar Transition in TailwindCSS Summary During progress bar implementation using TailwindCSS, setting transition-duration concurrently with width changes prevented smooth animation. The duration-3000 CSS class was applied simultaneously with the 100% width update, causing the transition effect to be bypassed. Root Cause CSS transitions require persistent timing configuration during state changes transition-duration: 0s … Read more
Postmortem: Inline Datepicker Styling Failures in Flowbite + Tailwind CSS Project Summary Customizations to Flowbite’s inline datepicker failed because Tailwind’s CDN version doesn’t support arbitrary variants or complex selectors. Styles targeting nested elements were ignored, causing borders, colors, and date states to remain unchanged despite extensive CSS overrides. Root Cause Flowbite generates DOM elements dynamically … Read more
Issue Analysis: Arabic Hyperlinks Render Bold in Word Despite Missing OpenXML Bold Tag Summary Run properties Character styles (“Hyperlink”) Base styles (“DefaultParagraphFont”) Paragraph styles The system failed to reconstruct the bold rendering during document regeneration. Root Cause The bold appearance originates from Word’s locale-specific defaults for complex scripts: 2. Word internally applies bold formatting to … Read more