Help new growth red/purple/brown!

Hey guys transplanted these outside into ground with promix HP, they are in veg, PH between 5.8 and 6.5 when watered, they get fed every other water with GH, last feed I ran out about a week ago and used MG vegetable food mixed lighter than instructions with water. I have never seen this before. All new growth on two plants have a ready/pink/brown new growth in shoots. Any help is awesome, thanks.Screenshot_20200613-150903.png
 
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