Missing elements after RecycleScroller is displayed

[fire1]

Describe the bug

Initial page load, when the page is displayed one of the missing elements is shown and when the scroller is fully ready both are missing. I assume this is caused by the contents of the item but cannot determine why, once an item has this problem, no page refresh changes the view (the problem stays).

Here is the HTML, there is a gap between items.

Here more missing

Any suggestions on what I can log from the source code, I'm using a fork.

Reproduction

I'm not sure what cousin these gaps are, mostly all items have equal contents, any feedback on what to log from the source code will be appreciated.

System Info

System:
    OS: Windows 10 10.0.22621
    CPU: (16) x64 Intel(R) Core(TM) i9-9900KF CPU @ 3.60GHz
    Memory: 15.99 GB / 31.92 GB
  Binaries:
    Node: 18.12.1 - D:\nodejs\node.EXE
    Yarn: 1.22.19 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 9.2.0 - D:\nodejs\npm.CMD
  Browsers:
    Chrome: 111.0.5563.33
    Edge: Spartan (44.22621.1265.0), Chromium (110.0.1587.50)
    Internet Explorer: 11.0.22621.1

Used Package Manager

yarn

Validations

• [X] Read the docs.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [X] Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• [X] The provided reproduction is a minimal reproducible example of the bug.

[fire1]

Found some strange overlapping by console.log on line 568:

SCR Proxy(Object) {item: Proxy(Object), position: 0, nr: {…}, offset: 0}
RecycleScroller.vue:568 SCR Proxy(Object) {item: Proxy(Object), position: 36, nr: {…}, offset: 0}
RecycleScroller.vue:568 SCR Proxy(Object) {item: Proxy(Object), position: 36, nr: {…}, offset: 0}[[Handler]]: Object[[Target]]: Object[[IsRevoked]]: false
RecycleScroller.vue:568 SCR Proxy(Object) {item: Proxy(Object), position: 72, nr: {…}, offset: 0}
261RecycleScroller.vue:568 SCR undefined
RecycleScroller.vue:568 SCR Proxy(Object) {item: Proxy(Object), position: 0, nr: {…}, offset: 0}
RecycleScroller.vue:568 SCR Proxy(Object) {item: Proxy(Object), position: 108, nr: {…}, offset: 0}
RecycleScroller.vue:568 SCR Proxy(Object) {item: Proxy(Object), position: 36, nr: {…}, offset: 0}

[fire1]

There was an internal error for key identifier

[fire1]

It was an internal error, keyField was duplicated...