I used the the sample (VCLHost and fmxPlugin) to check and confirm the case:
delphi version from 10.3-10.4.1 , hydra latest versions（guess any version also can produce this error)
- if I registerclass for datamodule , it is correct.
- if I registerclass for Tform and use findclass to find it , it report with the Eclassnotfind error. if I dont ModuleManager.LoadModules(‘Plugin.dll’);， it can use findclass to find the tform.
Please advise how to solve it as I need use registerclass and findclass to create some form.