Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
In Strategy Linux environment, Dossier export to pdf suddenly doesn’t work for 5-6 dossiers. The exported dossiers are extorted or missing visualizations (OOTB visualizations).
For example, the dossier visualization from Strategy web is shown as below:

While the PDF export shows amplified and distorted graph as below:

NewExportEngine.log doesn’t indicate any error but only a warning on font as show below:
2022-04-14 19:53:44.772 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][WARN] The font Arial cannot be found in system fonts. Fall back to Adobe embedded font AdobeArabic-Regular2022-04-14 19:53:44.784 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] Enter PDFMergerImpl.addFooter(..) with arguments: [xxx@xxx, 1 / 2]2022-04-14 19:53:44.791 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] Leave PDFMergerImpl.addFooter(..). Time elapsed: 7ms2022-04-14 19:53:44.791 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] Enter PDFMergerImpl.addFooter(..) with arguments: [xxx@xxx, 2 / 2]2022-04-14 19:53:44.798 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] Leave PDFMergerImpl.addFooter(..). Time elapsed: 7ms2022-04-14 19:53:44.799 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] the PDFAssembly part's footer excution time = 15 ms2022-04-14 19:53:44.799 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] the PDFAssembly part's merger excution time = 8 ms2022-04-14 19:53:44.799 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][TRACE] the PDFAssembly part's excution time = 52 ms2022-04-14 19:53:44.807 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][INFO] Finished merging 2 pages. Time elapsed: 67 ms2022-04-14 19:53:44.807 [HOST:xxx][SERVER:CastorServer][PID:26906][THR:pool-5-thread-1][NewExportEngine][INFO] Finished exporting dossier: xxxxxx (Object ID: B742A5E01D4E07C31F2DB7B712764C36). Status: COMPLETED. Time Elapsed: 5377ms
The New Export Engine is in version 2020 Update 3 while other components are upgraded to 2021 Update 2. This causes unexpected result.
Upgrade New Export Engine to same version to match other components by following steps below:

Point the current machine to use other nodes' NEE by following steps below:
KB440129: How to deploy New Export Engine as standalone component in MicroStrategy 2021