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Known Bugs and Issues

Below are lists of bugs awaiting resolution and also other known issues. When bugs are resolved, a patch will be available at the Download page. Workarounds are given if known.

To contact us to report a bug or issue not on this list, please send an email message to .


  • No bugs are currently known.

Known Issues

  • The progress bar may stop updating if a large amount of image data is opened or saved. The program has likely not hung up or crashed. Just wait until the I/O is complete.
  • The display may freeze when a complex redraw of an image window is in progress. To refresh the display, restore the main RegiStar window down and then back up.
  • In a Calibrate operation with the All open images... option selected, an “insufficient overlap” error may appear if an image has significant geometric edge curvature. Press Cancel to avoid subsequent incorrect calibrations.
  • On older computers, raw images may display as black because computing power is insufficient to populate the display cache. Try turning off the cache, using Preferences > Raw Images.

See build history for a list of patches and bug fixes to RegiStar 1.0.10.

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