Certified Vedic Astrology Consultation Program

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Summary A critical production incident occurred where the astrology consultation platform generated inaccurate predictions due to misaligned astronomical reference data. This caused unreliable horoscope outputs for end users. Root Cause The core failure stemmed from: Ephemeris data discrepancies: The platform used outdated planetary position tables lacking delta-T corrections for Earth’s rotational variations. Improper coordinate conversions: … Read more

Disable Auto Chart Move on new data push

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Summary The default behavior of AmCharts 5 is to move the chart when new data is pushed into the series, which can be annoying when viewing historical data. The goal is to disable auto chart move on new data push. Root Cause The root cause of this issue is the default behavior of AmCharts 5, … Read more

How do I make an animation that moves a mesh play in place in Unreal?

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Summary A developer encountered unintended mesh movement when retargeting a crouching animation from Unreal’s Free Animations pack. Instead of playing in place, causing position drift. This postmortem breaks down why animations move geometry unexpectedly and how to force fixed-position playback Բ喦   ****clear_terminology Root Cause The core issue stems from improper handling of root motion during animation … Read more

Unresolved reference ‘AnchoredDraggableDefaults when generating Signed APK

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Summary The issue of Unresolved reference ‘AnchoredDraggableDefaults’ occurs when generating a signed APK, despite the app building and running successfully in debug mode from Android Studio. This problem arises from the use of experimental APIs in Jetpack Compose, specifically the AnchoredDraggable component. Root Cause The root cause of this issue is the use of experimental … Read more

The ballon needs to pop in a certain way

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Summary An animation sequence failed to trigger correctly during a balloon-popping simulation. Instead of displaying the gradual popping animation, the model abruptly disappeared without rendering intermediate states. This occurred because the transition to the hidden state skipped crucial animation frames. Root Cause The core issue arose from premature state transition: Immediate removal: The balloon object … Read more

How to Upgrade PHP 7.4 to 8.2 in XAMPP without data loss?

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Summary Upgrading PHP from 7.4 to 8.2 in XAMPP without losing data requires careful planning and execution. Key considerations include preserving htdocs project files, MySQL/MariaDB databases, and XAMPP configuration settings. This article provides a step-by-step guide on how to achieve a seamless upgrade. Root Cause The root cause of potential data loss during a PHP … Read more

inlined strcmp() on ppc64le (sometimes) returns a wrong value when the strings are same

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Summary The issue at hand is an inlined strcmp() function on ppc64le architecture that sometimes returns a wrong value when comparing two identical strings. This problem occurs when the code is compiled with -O optimization using gcc (GCC) 11.2.1 20220127. The comparison involves two variables: a local character array and a memory-allocated variable. Root Cause … Read more

PyTorch: trying to create a joint dataset with different transforms results in both datasets having same transform

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Summary The core issue stems from a subtle naming conflict and shared mutable state in the user’s PyTorch data pipeline. Specifically, the variable names train_set and val_set are first assigned to the unmasked dataset subsets. However, later in the script, the variables train_set and val_set are accidentally reused when creating the masked dataset subsets. This … Read more

How to protect Raspberry Pi SD card using OverlayFS

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Summary The goal is to protect the Raspberry Pi SD card from wear and tear by utilizing OverlayFS, a Linux feature that allows for a read-only root filesystem and a writable overlay. This is particularly useful when setting up a self-hosted Azure DevOps agent on a Raspberry Pi, as it involves repetitive tasks and configurations … Read more