Time machine does not make hourly backups.

Hello,

I have the following situation:

• MacBook Pro with Mojave 10.14.2 installed.
• Did create hourly backups on an Apple Time Capsule and external USB drive.
• Did a complete wipe of the internal hard
• Clean install from Mojave from an USB stick (downloaded Mojave before and put it on the USB stick)
• Used the Time Machine backup to only restored my data, but no applications, no settings, no other files
• Used 'sudo tmutil inherit backup ...' and 'sudo tmutil associate disk -a ...' successfully on both the Time Capsule and external USB Time Machine backup drive.
• Did a "backup now". The MacBook successfully made a backup to the Time Capsule.
• Did a "backup now" again. This time the MacBook successfully made a backup to the external USB drive.
• Configured Time Machine to automatically make hourly backups / snapshots.
• Rebooted the MacBook.

Now I have been working approximately 6 hours on my MacBook and in that time created a folder in my home folder and put some pictures (.jpg) files and a .pdf file in it.

However, Time Machine has still not made a backup to either the Time Capsule nor the external USB drive.

Both are visible in the Finder and I can access them via the Finder.

Why isn't Time Machine making hourly backups now as it used to do and where it is configured to do so?

What am I missing and/or can I check?

There must be a reason but I'm a bit stuck at the moment.

Best regards,

emeu1