Placing/updating AI file links in INDD after update takes a very very very long time.
After updating AI and INDD, placing AI files into INDD is taking a very long time. I made an update to an AI file that was placed into an existing INDD files that contains 13 placed AI files. I only updated a few of the linked AI files. Prior to the AI and INDD update, updating these placed links took a few seconds each max. Now, just to update the two links takes about 2 minutes.
This MAY be an AI bug, but I don't know how make that determination as I updated bothat the same time.
This seems to an InDesign issue or slowness of your file system or network. Illustrator has no role in the link update / place inside Indesign.
Please log this on Indesign UserVoice : https://indesign.uservoice.com/
or Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html .