Coir can be quite iffy. If you continue to see any issues, might I suggest this product for veg cycle made by the same company, but it has the trace minerals already in it. Pretty good NPK Ratios too, in case you're interested. These were the best prices that I found. Good Luck!
https://www.amazon.com/Bio-Thrive-Grow-4-3-3-Gallon/dp/B006IGEM5E/ref=sr_1_5?crid=KOB6VI8IHYYD&keywords=BioThrive&qid=1648446931&s=lawn-garden&sprefix=biothrive%2Clawngarden%2C147&sr=1-5
https://www.ebay.com/itm/153924061268?mkevt=1&mkcid=1&mkrid=711-53200-19255-0&campid=5338765313&toolid=10001&customid=6d79d7faa2380824ea08109646e585b1