Problem in LP when selected special grid template in one of Schedule Blocks.

Steps to reproduce:
1. Go to Page and create a new LP.
2. Add two schedule blocks.
3 In second Schedule Block, change template to special grid.
4 Click on first Schedule Block.

Actual result: It's impossible to click on first Schedule Block
Expected result: It should be possible to click on first Schedule Block

Remarks: Both blocks have to be in the same zone next to each other.