[DevExpress Support Team: CLONED FROM T711818: Core - Design-time Model Editor does not take Entity Framework class metadata into account]
I received this error again (Filter Builder dialog not able to open) when upgrading to 19.2.3. I reverted back to 19.1.5 and it works fine.
We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.
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Hello,
As a temporary solution, disable our custom implementation of ITypeDiscoveryService as described in the T807111 - Performance & Stability Enhancements for Design-Time Model Editor, Application & Module Designers in XAF v19.2 article (the 'How to Disable These Optimizations' section). Let me know whether this solution helps.
Thanks,
Andrey