Well, much to my surprise, the same thing is also happening on my other PC which has Matrix installed. Addon version is 4.9.3.
I thought it was only going to be on my regular PC with Leia installed.
There's something very odd going on though. Last night when I set the timer for Frankenstein, the start time on both the guide and timer screens definitely read 23.15Hrs, but going back on guide today it's now reading a start time of 23.20Hrs:-
And the recording screen today is reading a start time of 23.10Hrs (with the previous programme title)
The guide screen today is also showing a 5 min programme directly before the Frankenstein item, so I'm presuming this has something to do with the 5 minute padding applied?
The entry before this 5 minute programme is the actual programme broadcast before Frankenstein with a start time of 22:35Hrs, ending at 23:15Hrs.
So, a bit of a mystery. I will remove the padding values from the STB, restart and see if that makes any difference, ie if I get the correct programme title when setting a new timer. I'll let you what the outcome is.....