Cura v21 Slicer settings missing

Hello. Have been running Octoprint on a raspberry pi for quite some time with great success. Just installed Octolapse and running into some issues. I have an original Lulzbot Mini which has issues with new versions of Cura so I'm still running v21 and hoping I can still get Octolapse working.

Can I still use the "Cura 4.1 or below" script for Automatic Slicer Config?

Based on inspecting the g-code that gets produced, it does not appear that all the variables are getting consumed properly (see g-code below... curly brackets are just replaced with question marks):

Here are the first several g-code lines:
; Script based on an original created by tjjfvi (https://github.com/tjjfvi)

; An up-to-date version of the tjjfvi's original script can be found

; here: https://csi.t6.fyi/

; Note - This script will not work in Cura V4.2 and above!

; max_feedrate_z_override = ?max_feedrate_z_override?

; retraction_amount = 1

; retraction_hop = 0.1

; retraction_hop_enabled = ?retraction_hop_enabled?

; retraction_prime_speed = ?retraction_prime_speed?

; retraction_retract_speed = ?retraction_retract_speed?

; retraction_speed = 10

; speed_travel = ?speed_travel?

; retraction_enable = 1

; layer_height = 0.38

; smooth_spiralized_contours = ?smooth_spiralized_contours?

OctoPrint version 1.5.2
Lulzbot Mini
Cura v21.02

Hi All. So as not to leave this hanging... Just want to give an update. After some more fiddling, turns out I had a couple other issues going on. It appeared as if Octolapse was stuck in a loading state of some kind. After uninstalling/reinstalling Octolapse and using the below settings in the Start G-code, everything seems to be working. For those settings that it apparently could not find, I found suitable values and hard coded them in the start G-code. I hope that does not come back to haunt me :|. Open to further suggestions if anyone knows of potential issues with what I did to get this working.

; Script based on an original created by tjjfvi (https://github.com/tjjfvi)
; An up-to-date version of the tjjfvi's original script can be found
; here: https://csi.t6.fyi/
; Note - This script will not work in Cura V4.2 and above!
; max_feedrate_z_override = 0
; retraction_amount = {retraction_amount}
; retraction_hop = {retraction_hop}
; retraction_hop_enabled = False
; retraction_prime_speed = 45
; retraction_retract_speed = 45
; retraction_speed = {retraction_speed}
; speed_travel = 150
; retraction_enable = {retraction_enable}
; layer_height = {layer_height}
; smooth_spiralized_contours = 0