ISR doesn't work on Deploy Preview

I try to use ISR feature.

I return

  return {
    paths: [],
    fallback: 'blocking',

in getStaticPaths()

I expect that no pages will be generated. And all pages will be generated, once I will open them the first time

But instead of page, I get the next message:

This function has crashed

An unhandled error in the function code triggered the following message:

2023-07-13T14:45:30.537Z 82d647a6-356e-4071-b8d1-eca56ad5cff7 Task timed out after 10.01 seconds
Connection details

Netlify internal ID: 01H57VDATYCAEH13T1FBPN3WRV

During SSG build, page is built less than 1 second.
So, I want to understand what function takes 10+ seconds to change/fix it and I click on Site owners: Review the function logs for more info. link.

But logs page is broken:

Is ISR supported for Deploy Previews?
How to troubleshot this issue and access function logs? (I want to see logs for Next.js ISR handler function on certain branch)
Is there something that I am doing wrong?

Hiya, we have a helpdesk ticket. Stay tuned to your email for an update.