Load save after sync check box was removed after updating from [2.0.12] to [2.0.13], causing the game to restart but not load the save with the mods actually enabled.
[2.0.12]
[2.0.13}
UPDATE:
It turns out it will give you the option to load save after sync if you click the green load button instead of going to the top-right sync mods with save button.
[2.0.13] "Load save after sync" check box missing
Re: [2.0.13] "Load save after sync" check box missing
Thanks for the report. This is now fixed for the next release.
If you want to get ahold of me I'm almost always on Discord.