# Troubleshooting Adaptive Probe Volumes

> Solve common issues with Adaptive Probe Volumes, such as light leaks and seams.

Solve common issues with Adaptive Probe Volumes, such as light leaks and seams.

| **Page**                                                                                                                                                                | **Description**                                                                                                                             |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| [Light Probe validity in Adaptive Probe Volumes](/engine/6000.6/manual/lighting-overview/lighting/probevolumes/fixissues/light-probe-validity.md)                       | Solve common issues with URP marking a Light Probe as invalid when sampling rays hit the unlit backfaces inside geometry.                   |
| [Troubleshooting dark blotches or streaks in Adaptive Probe Volumes](/engine/6000.6/manual/lighting-overview/lighting/probevolumes/fixissues/troubleshoot-artefacts.md) | Solve common issues with artefacts in lighting from Adaptive Probe Volumes.                                                                 |
| [Troubleshooting light leaks in Adaptive Probe Volumes](/engine/6000.6/manual/lighting-overview/lighting/probevolumes/fixissues/troubleshoot-light-leaks.md)            | Solve common issues with lighting from Adaptive Probe Volumes appearing too light or dark, for example in the corners of a wall or ceiling. |