mrokloricred37 wrote:
BTW I can many files but not Quick Assist, which DOES exist on a TM backup. Checked spelling and spacing and caps. This is on the reformatted TM.
To find files on the backup (Time Machine), that drive has to be indexed, which can take a number of hours, many hours if there are multiple backups and their sizes are large. So the backup drive would need to be left connected to the computer for a while for this to complete and work. The background process that does this is called mds or some variation of mds.
I am trying to come up with reasons why your searching isn't working but mine is. I leave my backups connected basically all day so I know they have all been fully indexed. I can search for and find any backed up file from within the backup drives (I have two Time Machine backups, Time Machine alternates between them) using the Finder search function when that backup drive is specified as the location to search. One possible reason is that the file and content indexing of the backup drive has not completed, or that it is somehow corrupted. To address that, you can open Settings and go to Spotlight and then go to Privacy and put your backup drive in the Privacy box (which means, "do not search"). Then close Settings, restart the Mac, then go back to Settings and remove the backup drive from the Privacy box. This instructs the Mac to create a new index for that drive, which could take several hours or more depending on its size. On my older Mac (2019 MacBook Pro Intel 16") it takes 45 to 90 minutes to complete the indexing of the primary drive (which is using 400 GB out of 1 TB total space), the backup drives would take longer.
Another possibility -- do you have any third party external drive software or firmware installed? To manage your external drive, such software comes with almost all drives, e.g. Western Digital, LaCie, Samsung, SanDisk etc. It is always best NOT to use such tools as they can conflict with the MacOS when they overlap in function. Especially problematic (many reports in Apple Discussion about this) are the third party options to encrypt or password protect the external drive. Also, any third party "security" or anti-virus, anti-malware etc. tools can interfere.
Since you were able to manually locate and restore your file, maybe there is no issue but you should have full functionality on your Mac under Sequoia. If this is still bothering you, you could download Etrecheck and post its diagnostic report here using the additional text below, following this guideline posted here by the very knowledgable Old Toad (Etrecheck was developed by Etresoft, another experienced participant in Apple Discussions):
How to use the Add Text Feature When Post… - Apple Community