Do research and make comparison to other game engine for example Godot since the editor is a game itself.
Use boolean instead of trigger once. So the logic is when a boolean switched state the action won't executed further more.
Create instance variable first and rename it.
Yes it is but add AJAX first to retrieve string from imported txt file.
Upload the project file to file sharing cloud such as dropbox, google drive, one drive or similar then share the link with given access here.
An example got A* implemented: dropbox.com/s/ibrle5bdb4rhmfy/path_touch.capx
Check in layer properties whether it set to "Force own texture" or transparency unchecked.
Not straight answer but this example hopefully gives you an idea about hex grid spacing & picking: dropbox.com/s/7e1s4vl9vh6bion/hex_presentation.capx
Make sure pinning executed once. If you are using boolean as condition, verify the boolean toggled state to false after pinning.
Mostly problem with image point position. How big the sprite is?
The formula is abs(Sprite.AnimationFrame-1) or (Sprite.AnimationFrame+1)%2.
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Try to reset global variables.
System--> Trigger Once
Try Buildbox. It's match the programming style you are referring to.
Feel the same with new intense pink-magenta color burst.