Pathway analysis using Zea mays library (technical issue)

I am using metaboanalyst online server for pathway analysis using Zea myas library and I notice that few important compounds like Glutamate and Alanine are not used/highlighted in particular pathways even after matching the compound names in the library. This is affecting the overview of my metabolomics study since due to missing compounds (glutamate/ alanine), the -log 10 p values and FDRs are going low. Appears to be some technical glitch. It would be helpful if it could be resolved.

Attaching the screenshots from my analysis for your reference.