Search for tmsbcl270.bpl files in your disk. You should have one in folder
<bcl_install_folder>\packages\bpl\win32
And in your Delphi default output BPL folder, which is usually
C:\Users\Public\Documents\Embarcadero\Studio\20.1\Bpl\
You should have a symbolic link to the bpl in bcl install folder. Please check if you have such things.