Failed to connect to Acrobat DDE server
1. Latest Indesign with latest Acrobat running on Windows 10 (1709)
2. When exporting a PDF with activated option "Open PDF after export" and with Acrobat being already open with a document (but only in display mode and no dialogue window open), it would sometimes not open the PDF in Acrobat, but after a while show an error popup saying it failed to connect to Acrobat DDE server. I never had this in former versions of Indesign and Acrobat.
Sophia Wilson commented
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