In defence of Phrog

, I have quite often done the same , but did not get any crashes.
I am newish to xlights and come from an LSP background , where when u create a new sequence, the default option is to to create timing marks (you can pick the frequency or deliberately say None) and the default option is to copy all your models in (you can nominate from which seq ) - most people use the previous seq.
When you open LSP and select open a seq , it shows u a list of recently used sequences as part of the dialogue with the last one on the top .
So when the sequencer tab is then presented (very similar to the xlights view now), you are ready to go.
I am on my 3rd seq in xlights now (and have been doing odd imports ) and I mostly get caught out either not having timing marks defined or not having models defined on the sequencer tab, but know now after a few seconds what I have missed.
(mostly when I see everything greyed out)
Just a question of getting used to it, but I can see how anyone would click on the seq tab to see if it would make a diff to the greyed out icons - I have done that previously.