Sen2cor 2.5.5 parsing error

Optical Toolbox sen2cor
#1

I have been using sen2cor (2.5.5) thru SNAP UI and it has been working great for me, however I have S2A scenes from September 2018 and I seem to be getting the following error when using sen2cor to generate L2A product.
If processing for all resolutions the following error appears in a loop:

Syntax error in metadata, see report file for details.
Parsing error:
Schema file: S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_PDI_Level-2A_Tile_Metadata.xsd
Details: Element '{https://psd-14.sentinel2.eo.esa.int/PSD/S2_PDI_Level-2A_Tile_Metadata.xsd}Level-2A_Tile_ID': No matching global declaration available for the validation root.
Progress[%]: 97.91 : PID-25092, 20 m resolution must be processed first, elapsed time[s]: 0.536
Progress[%]: 97.91 : PID-25092, L2A_ProcessTile: processing with resolution 20 m, elapsed time[s]: 0.211
Progress[%]: 97.91 : PID-25092, L2A_ProcessTile: start of pre processing, elapsed time[s]: 0.002
Syntax error in metadata, see report file for details.
Parsing error:
Schema file: S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_PDI_Level-1C_Tile_Metadata.xsd
Details: Element '{https://psd-14.sentinel2.eo.esa.int/PSD/S2_PDI_Level-1C_Tile_Metadata.xsd}Level-1C_Tile_ID': No matching global declaration available for the validation root.

If processing for a specific resolution, e.g. 20m, the above error appears, and it says the program finished execution with at least 1 error (above).
Has anyone else experienced the same ? Can anyone help guide me to solve this issue. I find it strange that I can still use my current SNAP / sen2cor setup to process images from last year, which leads me to believe that the xsd / schema may have changed in the S2 L1C data and is not recognized by the SNAP/sen2cor yet ?
Any help is highly appreciated!

#2

Following error message occurs in case i specify only 20m in sen2cor

Progress[%]: 21.56 : PID-25808, L2A_Tables: stop export, elapsed time[s]: 0.218
Syntax error in metadata, see report file for details.
Parsing error:
Schema file: S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_PDI_Level-2A_Tile_Metadata.xsd
Details: Element '{https://psd-14.sentinel2.eo.esa.int/PSD/S2_PDI_Level-2A_Tile_Metadata.xsd}Level-2A_Tile_ID': No matching global declaration available for the validation root.
Syntax error in metadata, see report file for details.
Parsing error:
Schema file: S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_User_Product_Level-2A_Metadata.xsd
Details: Element 'L2A_Scene_Classification_List': This element is not expected. Expected is ( REFERENCE_BAND ).
Progress[%]: 100.00 : Application terminated with at least one error.
Finished tool execution in 961 seconds

Any help to solve this problem is highly appreciated!