Hi Jorge,
This is not a bug in PixInsight.
This happens because your operating system does not provide a valid ICC profile to characterize your machine's screen. This is a typical issue with Windows on laptops, especially convertible laptops with touch screens. To solve this problem, you should associate a valid ICC profile (such as the standard sRGB IEC61966-2.1 profile) with your monitor. There should be a way to do this from Control Panel, or something similar. Once you have your monitor characterized by a valid ICC profile (the sRGB profile will work almost perfectly), PixInsight will run without problems providing a fully color-managed environment.