Ok, this issue bugged be so much now, that I made a tool that adds linkedscene_lookat to every hotspot in the provided xml.
For everyone with the same issue, you can use it for free here: https://dirkfedermann.github.io/krpano-linkedscene_lookat-adder/
It is not pretty, but it does the job.
I'm having the same problem. The start up scene does not save after setting it. When I add a hot spot the start up scene act like it is not saved. What is the proper sequence to 1. Save a "Start Up " view that actually gets saved. 2. Save a Target Start up View. Very frustrating that I cannot find a way to consistently save a "Start Up view" and a "Target Start up View" for a scene. Please advise.
For now you have to delete the hotspot and then add a new one directly and set up the Target Start up View before saving it.
oh ya, forgot to say, that I'm also using the 1.21.2 (build 2023-12-11) version but the vtours are made with 1.20.11
I have created a bunch of vtours with version 1.20.11 and wanted to update them now and add the startup view to the hotspots.
But if I set the startup view on the hotspot (in the krpano Tools - Editor) it does not save it to the tour.xml.
It works, when I initially click on it to get to the next scene, but trying it a second time does not work.
Saving the tour.xml after the edit also does not save the startup view of that hotspot.
Only, if I make a new hotspot and define the startup view there, it saves it.
Additionally, when I change in the tour.xml the hotspot to have a linkedscene_lookat="0.00,0.00,120.0", save it, load it and then try to edit the startup view from a hotspot that has this added, it works fine.
It feels like, the krpano Tool - Editor can not add the linkedscene_lookat to existing hotspots that do not have it.
Any way that can be fixed in a near future version?
EDIT: For the time until this gets fixed, I made a tool that adds the missing linkedscene_lookat to all hotspots. After that you can edit the hotspot and edit the Target Startup View as normal in the krpano tool.
https://dirkfedermann.github.io/krpano-linkedscene_lookat-adder/
I have enabled it, because I was troubleshooting something in a game a couple of weeks ago and made it globally instead of only the game 
And who would've thought, that a 3D Setting messes up a 2D program 
I found the culprit of the issue.
I had the same issue yesterday using Visual Studio Code and with that in the search term I found the solution.
In the Nvidia Control Panel, in the 3D Settings, FXAA has to be off. At least for the programs like krpano or Visual Studio Code.
It really sounds crazy, but that was the solution.
Hope it helps someone in the future 
ok, using the 32bit version fixed it for me.
And good to know that it might be caused by NWJS and you are moving away from it.
Thanks for the help and the work!
Hi,
I have a strange problem with the 'krpano Tools.exe'.
When I move the window or just work with it, it gets blurry.
And it is not only the inside of the window, but also the window title bar.
What has change since I last used it was my GPU (same Manufacturer) and my monitors. I have the current drivers installed.
There is no scaling on Windows, since I only have 1080p monitors.
And I only have that with the 'krpano Tools.exe', not with other programs.
What I have tried so far:
- Older Version (1.20.5)
- Zoom and UI Settings in the tools it self
- UI Scaling within Windows
- GPU Driver update
- Windows restart
- deleted all the krpano related files and folder in appdata/roaming and appdata/local
Anyone know what is causing that and how I can fix it?
