Deleting a Deck does not remove Deck Calendar

[brimwats1]

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Describe the bug
I deleted a deck, but the calendar "Deck: Title" remains
To Reproduce
Steps to reproduce the behavior:

1. Have deck that shows up on calendar.
2. Go to deck app, delete deck.
3. Go back to calendar, the Deck calendar is still present.

Expected behavior
Calendar should be deleted.

Screenshots

Client details:

• OS: [e.g. iOS] Windows 10
• Browser [e.g. chrome, safari] latest Chrome
• Version [e.g. 22] 19.03
• Device: [e.g. iPhone6, desktop] desktop

Server details

Operating system & Web server:

Operating System: Linux 3.10.0-962.3.2.lve1.5.27.el7.x86_64 x86_64
CPU: Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz (8 cores)
Memory: 31.26 GB

Database:
Type: mysql
Version: 5.7.31
Size: 46.1 MB

PHP version:
Version: 7.3.21
Memory Limit: 512 MB
Max Execution Time: 3600
Upload max size: 300 MB

Nextcloud version: (see Nextcloud admin page) 19.03

Where did you install Nextcloud from: Cpanel

[freakms]

Information: I got an error with this way, that the cal's are not removable. Same issue

[vasyugan]

How is this fixed? I still cannot delete deck generated calendars.