An SXA site might not be resolved so that it falls back on the default website intermittently. The issue occurs when the enforce version presence feature for the SXA site is enabled. The warning "Incorrect site definition" can be found in the logs.
To resolve the issue, consider one of the following options:
- Upgrade a Sitecore XP instance to Sitecore XP 10.3 and SXA 10.3.0.
- Download and install the latest cumulative hotfix compatible with the affected product version:
- For Sitecore XP 10.1 and SXA 10.1.0, see KB1001756
- For Sitecore XP 10.0 and SXA 10.0.0, see KB1001755
- For Sitecore XP 9.3 and SXA 9.3.0, see KB1001754