I am having the same problem on various publications I've created.
It's began to happen since around the early March this year after months of not having this issue.
Please resolve it!!! Sometimes the publication doesn't even display properly in the center of the frame!!

Having the same issue for 2 days.

Same random broken links issue here. Playing upload roulette and different images dropping every time. A few notes:

This problem is brand new with me - about 8 days old
It's happening with every file I try to publish - even old files that previously published fine
I work from home with my own internet but connect to a company server via VPN
I tried uninstalling InDesign and reinstalling v. 17.0 - didn't help
I tried packaging the file and Publishing from my computer - didn't help
My colleague is publishing my files without issue (same company and VPN connection, same InDesign version 17.1, also working from home)
I tried clearing my browser caches (Chrome and Microsoft Edge) and tried the link in private windows - didn't help

Patiently waiting for someone to discover what is happening.

This user here at the InDesign forum has the same issue:
https://community.adobe.com/t5/indesign-discussions/rollover-image-missing-when-published-online/m-p/12814987#M469448

Regards,
Uwe Laubender
( ACP )

Ohhh come on dear ADOBE I'm having the same problem and catching a lot of complaints from customer-side. If this is going on from the 4th of march it seems really a small desaster on ADOBE-side.
Please help us, I use adobe since 1983 (formerly Pagemaker).

Having the same issue for 2 weeks now

I'm having issues as well--even if I rewrite the file, a different section ends up missing. It's not only graphic files, but with text frames.

I've also had similar issues but not just only with .ai and .svg files but also jpegs too. It seems very intermittent for example i published a file yesterday with lots of missing links and images, published and overwrote the exact same file this morning and appears fine. It's all very strange.

Have been having this issue since last week as well.

Having this issue as well.

My team is experiencing this issue as well. There are strange missing image icons overlapping text boxes as well as missing images, etc. We need this fixed ASAP. We have been experiencing this issue since mid-week last week.

The same issues continue. Please fix this!

Same problems here since March 7.. Pictures and text missing when publishing online.

I'm having the same problem with my online document. There are missing items, but you can see them in the thumbnails

Hi AC Schuler,
tested your document on a Windows 10 machine and had no issues:
https://indd.adobe.com/view/5d9ccc7f-d657-4add-a705-6d40d63106c7

Regards,
Uwe Laubender
( ACP )

Here some links to corresponding discussions at the Adobe InDesign user forum:

Indesign Bug breaking native content and text on Publish Online
kevinw2989010, Mar 04, 2022
https://community.adobe.com/t5/indesign-discussions/indesign-bug-breaking-native-content-and-text-on-publish-online/td-p/12792632

KEVIN'S PROJECT:
https://indd.adobe.com/view/9869b534-40d8-4f4c-bcfa-5c4e0b3ed34a

Indesign - missing objects when Publishing Online
Nigey-LTA, Mar 04, 2022
https://community.adobe.com/t5/indesign-discussions/indesign-missing-objects-when-publishing-online/td-p/12791497

Publish online problem – documents not displayed correctly
Schuler-Gätjens, Mar 03, 2022
https://community.adobe.com/t5/indesign-discussions/publish-online-problem-documents-not-displayed-correctly/td-p/12790018

Online, published interactive PDF displaying an unknown error
dylanf45424995, Mar 04, 2022
https://community.adobe.com/t5/indesign-discussions/online-published-interactive-pdf-displaying-an-unknown-error/td-p/12792798

Complaint about lack of care
Nigey-LTA, Mar 07, 2022
https://community.adobe.com/t5/indesign-discussions/complaint-about-lack-of-care/td-p/12798031

Regards,
Uwe Laubender
( ACP )

I have equal problems since two or three weeks. And every time i publish the document again there will be a new mistake! Adobe support didn’t help up to now.
See this example (2 pages):
https://indd.adobe.com/view/7be33955-7c94-4a54-a9b6-4ffb915d8841
https://indd.adobe.com/view/9d1a7b26-caf1-41ab-b712-b31d37d853c0
https://indd.adobe.com/view/12b689ae-bcb8-4cb7-babc-34c80043ea2d
Only text and vector paths in the document. I attached a screenshot of the first page as it is displayed in InDesign.