Help with a pattern

[holly123371]

Hi, I have a pattern to follow up where I can’t figure out how it’s gone from 45 stitches to 50. 
 

It’s from round 4 to round 5 and I’ve also included the corner pattern  

The corner pattern says: dc, ch2, dc in the same stitch (round 3)/chain space (rest of rounds)  

Round 4 had 45 stitches and then round 5 pattern is: sc, mbo, sc, corner 1, sc, mbo, sc, sk1 repeat 4 more times sl st in following stitch, 50 st

Thank you! 

 

[bgs]

Your increases are coming from this part of your pattern dc, ch2, dc as this sequence is worked into one stitch of previous round.  In round 5 this sequence is worked where it says corner 1.  At this point I am curious if you wrote the instructions for the pattern exactly as written because there should be (  ) or [ ] around something to indicate what is to be worked 4 more times.  I am thinking it is the entire sequence that is worked 4 more times so if that corner sequence is worked a total of 5 times you will have increased 5 stitches.