MKV File Date Breaking on Separate Drive K-Lite v1494 Full

So, yesterday I reinstalled Windows 10 onto an SSD and I kept my media and such on my old drive (before Windows and my media were on the same drive).  After reinstalling K-Lite Full v.1494, all my MKV files on my old drive now have incorrect dates.  Specifically 12/31/1969.  If I check the properties of the MKV videos, they are still correct, but explorer doesn't display them anymore.  If I move MKVs to either of my two SSDs, the date corrects, but not on my HDD.  If I uninstall K-lite Codec Pack, it all fixes itself again.

Before a clean install onto an SSD and reinstalling Klite, it was working correctly.  My last version of K lite was only a couple months old if that helps.

Is anyone able to help me figure out how to fix this?

12/31/1969 means it has a timestamp value of 0, or that the value is missing.

Set Explorer to details view and then right-click on the "Date" column. In the context menu you can then select which column are shown. Enable the "Date Modified" column. Does that show correct values?

Admin wrote:12/31/1969 means it has a timestamp value of 0, or that the value is missing.

Set Explorer to details view and then right-click on the "Date" column. In the context menu you can then select which column are shown. Enable the "Date Modified" column. Does that show correct values?

What I do not understand, is even the same files, from the last version I had, only being a couple months old, did not have this issue, and it was set to date also.  Not Date Modified.  Though date modified does work, I'd prefer to use standard date.

I isolated it to Explorer Shell Extensions: Icaros Property Handler (in advanced install).  Without it, it functions completely as it did without issue.  The dates appear correctly.  Not as zero or 1969 or such.  Though I don't know what the downside of not having it installed is.

A new thing I'm noticing that is weird, is thumbnails seem to be getting generated at the same time by series.

For example:  Most series thumbnails are being generated at 4.25 or so seconds. Some at 8 seconds. Quite often this is leaving me with having every episode of a series, having the same thumbnail. In the past, it seemed like there was a random timestamp taken for the thumbnail. Is there any way to get this behavior back?

I have asked the developer of Icaros about the date issue. After investigation it turns out that Windows sometimes uses the "Media Created" property from MKV files when that is available. Unfortunately many files have this set to value 0, which equals the weird old date you got. This will be fixed in a future version of Icaros, by simply ignoring the value if it equals 0.

Icaros by default takes the thumbnail at 25% of the file duration. This can be customized in Codec Tweak Tool > Thumbnails > Options. I suspect you are now using the standard thumbnailer of Windows? If not, clearing the thumbnail cache will allow them to be regenerated.

Admin wrote:I have asked the developer of Icaros about the date issue. After investigation it turns out that Windows sometimes uses the "Media Created" property from MKV files when that is available. Unfortunately many files have this set to value 0, which equals the weird old date you got. This will be fixed in a future version of Icaros, by simply ignoring the value if it equals 0.

Icaros by default takes the thumbnail at 25% of the file duration. This can be customized in Codec Tweak Tool > Thumbnails > Options. I suspect you are now using the standard thumbnailer of Windows? If not, clearing the thumbnail cache will allow them to be regenerated.

I was using what ever comes with the Full version of k lite (I assume the Icaros thumbnail thing). It oddly was set to 25%, but even after clearing icon cache, it still was appearing at 4.25s or 8s. Which for a 21 to 24 minute video is not 25% of the duration. Though setting it to 50% did get rid of the same thumbnail displaying.

Anyhow, I appreciate the help. Thank you.