Error to generate blocks on complex input

[BreakingPanda]

I noted that I can NOT render a complex combination of Join and Where. Example:

Join(',', Where(['A','B'], x => x != 'C')

Which Where block should returns a list of A and B and final result should become A,B. If I try to open blockly and set up blocks, it will fail and output render becomes Join(',',).

Advise please.

[BeksOmega]

I'm closing this so that no one gets confused. We'll keep all discussion over on #4964