Applications order reset after reboot

[Yoh Kubo]

Since some weeks ago
I drag&drop applicatios as i like,but after log out or reboot the order is always reset to default(alphabetical).

LSB Version: core-11.2ubuntu1-noarch:security-11.2ubuntu1-noarch
Distributor ID: Ubuntu
Description: Ubuntu 22.10
Release: 22.10
Codename: kinetic
Linux kubo-xubuntu 5.19.0-26-generic #27-Ubuntu SMP PREEMPT_DYNAMIC Wed Nov 23 20:44:15 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
0.11.89

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: plank 0.11.89-4
ProcVersionSignature: Ubuntu 5.19.0-26.27-generic 5.19.7
Uname: Linux 5.19.0-26-generic x86_64
ApportVersion: 2.23.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Tue Jan 3 07:54:50 2023
InstallationDate: Installed on 2021-05-26 (586 days ago)
InstallationMedia: Xubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
SourcePackage: plank
SuspiciousXErrors.txt:

UpgradeStatus: Upgraded to kinetic on 2022-10-26 (68 days ago)
modified.conffile..etc.default.apport:
 # set this to 0 to disable apport, or to 1 to enable it
 # you can temporarily override this with
 # sudo service apport start force_start=1
 enabled=0
mtime.conffile..etc.default.apport: 2021-06-02T00:25:42.898880