If its purely the file download and everything else works, echoing Suman's comment could be DNS, proxy, LB or a similar network appliance as well. Or maybe hitting a specific server instead of the true entry point. Additional details will help troubleshoot
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Original Message:
Sent: May 25, 2026 06:06 AM
From: Suman Pramanik
Subject: MUX error to download attachment if attribute is multi-attachment
Thanks Stephano, most likely the internal DNS resolution, glad its sorted.
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Thanks & Regards
Suman Pramanik
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Original Message:
Sent: May 25, 2026 06:00 AM
From: Stefano Lazzarotto
Subject: MUX error to download attachment if attribute is multi-attachment
Sorry. I tried to again to be sure and that error is not related to this problem.
I was able to replicate in another instance.
It looks like the problem is related to how I access to clarity:
with ip address it doesn't work, with correct dns name it works.
Suman, thanks for the help.
Original Message:
Sent: May 25, 2026 05:46 AM
From: Suman Pramanik
Subject: MUX error to download attachment if attribute is multi-attachment
Thanks does the file 6018568 is found in the path /clarity/cappm/filestore/clarity/Files/018/006
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Thanks & Regards
Suman Pramanik
Original Message:
Sent: May 25, 2026 05:25 AM
From: Stefano Lazzarotto
Subject: MUX error to download attachment if attribute is multi-attachment
Release 16.4
this is the error in app-ca.log
ERROR 2026-05-25 08:41:31,444 [https-jsse-nio2-443-exec-636] pagebuilder.FilePageBuilder (clarity:admin:25764611__2178B068-D2CD-4FB9-A666-5D8ACF143146:PPM_REST_API) (05aefc8f-c592-484f-8fe8-3a77e59f49c5) File "6018568" not found in path "/clarity/cappm/filestore/clarity/Files/018/006"
WARN 2026-05-25 08:41:31,444 [https-jsse-nio2-443-exec-636] ppm.rest (clarity:admin:25764611__2178B068-D2CD-4FB9-A666-5D8ACF143146:PPM_REST_API) (05aefc8f-c592-484f-8fe8-3a77e59f49c5) Attachment found without attachment data, may be due to a corrupted file store for resource: 5031005
Original Message:
Sent: May 25, 2026 05:19 AM
From: Suman Pramanik
Subject: MUX error to download attachment if attribute is multi-attachment
Any stack trace if you can share can check on potential cause.
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Thanks & Regards
Suman Pramanik