Need help identifying this

Hey hope all is well, as the title says need help confirming what this could be loads of yellow spots on a isolated fan leaf it suffered from nute burn a week a go have since sorted that issue and most of the plant/new growth seems to not be effected, looking around online it looks like bugs but seems as it’s isolated and not really effecting my other plant at all I’m unsure.

could be nutrient related. could be bugs, so check for them. could be high temp related, heat damage if you're using hot lights that are too close. hard to tell now.