FastReport OpenSource 2026.1.2 is used with .NET 6 on Linux. Frequent refreshing during print preview leads to multithreading issues, causing the system to crash and the service to terminate abruptly. The following errors are observed:
dotnet: ../../../../src/cairo-scaled-font.c:1326: cairo_scaled_font_destroy: Assertion ! scaled_font->cache_frozen' failed. dotnet: ../../../../src/cairo-scaled-font.c:1321: cairo_scaled_font_destroy: Assertion CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&scaled_font->ref_count)' failed.