Preview entity not found for bp100_entity-marker!

[Marwes]

Getting the message Preview entity not found for bp100_entity-marker! Please report this to the mod author on occasion (usually when I rebuild stages). I don't actually get any error in the factorio log though so I am afraid I don't have any more specifics than this.

(This is on a save where i am trying to recreate some old 1.1 blueprints for seablock for 2.0 using the dev branch(es) of seablock so good chance that causes issues).

[GlassBricks]

Can't reproduce still. If oyu can send a save, that would help debugging a lot.
Might fix, if the fix is quick.

However, I anticipate that the entire mechanism behind this problem (entity-markers) may go away in 2.1 (see mentioning issue), so this would be automatically fixed "for free" then, so I'm not sure its worth chasing edge cases before then.