Illegal_reg_rv32e not updated on two consecutive multicycle invalid instructions

[esdatmisarian]

Observed Behavior

On sequence

jalr x2, 0(x16) Decode PC:32'h10080 Invalid correctly handled
jalr x2, 0(x16) Decode PC:32'h10000 Invalid not handled -> x2 wrongly updated

Expected Behavior

Steps to reproduce the issue

My Environment

EDA tool and version:

Operating system:

Version of the Ibex source code:

Configuration:
Two-stage pipeline without additional branch target ALU
RegFile : "ibex_pkg::RegFileFF"
BranchTargetALU : 0
WritebackStage : 0
9e4a950

[esdatmisarian]

Configuration RV32E