I get many of my layers from my state of New Hampshire (US) repository, all come with the CRS
ESRI:103483 - NAD_1983_CORS96_StatePlane_New_Hampshire_FIPS_2800_Ft_US. When attempting to transfer to QGIS Cloud every layer has SRID (here 103483) INVALID. That means I have to housekeep every new layer to a valid SRID. The question is why make some SRIDs invalid and why isn't there any documentation of this Cloud constraint?
QGIS 3.30, QGIS Cloud plugin 3.8.