That warning will indicate that you have the tct open already, if you answer yes it will open a copy that is write protected, so make sure it's not, check if there is and then switch to the one that already are open, maybe you have more then one TC open at the same time ?
Else, the snap is not in the Template, it's in the cfg file/ UI, so maybe you just need to reload your cfg if you have made one, else it will open the default after a re install.
If you have made one, go to Tools/ Customize >> Options and about in the middle of the menu there is a Load From button, just below it there is a small Arrow, click on that and the list expand, select Yours if you have one and then click on the Load From button
V20, V21, 2015/ 16/ 17/ 18/ 19 Pro. Platinum
Deluxe 2015/ 16/ 19
Windows 10 Home Premium 64 bit, 32 GB
NVIDIA Geforce GTX 780m, 1 GB