modules multiple columns not support arabic

[edu Gpl]

Dear Uwe, lyx team
thank you for lyx 2.2.1
please lyx 2.2.1 support modules> multiple columns only if i used 2
columns, but this modules not work (with arabic) when i used over than 2
like 3,4,.. by "number of columns".
it's work good with english, but with arabic only 2 columns.

please see attachment files

best regards

columns_en.lyx
Description: application/lyx

columns_ar.lyx
Description: application/lyx