Nowadays Google search console is doing many changes to manage many things like indexing, validation, caching, data conversion from old to new webmaster so on. And now Issue validation is temporarily disabled because of some further changes. Disabling crawl request features takes more than a month and still not enabled, and now, validation issue, since search console disabling crawl request many site owners are facing the indexing problem because indexing takes much time to index the pages. And many experts say that “Today people put too much care to tools instead of making their sites better optimized.”.

If you want to know about this matter and want to discuss with experts visit the link below and start a question and answer.

https://support.google.com/webmasters/thread/89049501?hl=en

You don’t need to worry about this update because this note is for the search console technical team not for the users. Just one week ago Google re-started to take request indexing for pages. 

Google Search Console explains it “Google explained this in more detail saying “if you see a “validation temporarily disabled” message in your report, this is because we’re updating some of the criteria for some issues in this report.” Google clarified that “this change does not affect validation requests that are currently in process, but new validation requests can’t be submitted until after we finish updating our issue criteria.”